Fifty-Five, or 55, is a Numberblock made up of 55 blocks.
Fifty-Five has 50 sky blue blocks with blue borders and 5 cyan blocks. His limbs are navy blue. He wears a white mask with red borders and has a maroon mouth.
- "Starship explorer Fifty-Five, first interplanetary mission underway!"
- 55 is the first and currently only Numberblock in the 50s to be figured-out.
- 55 is the second “5 ender” to be male, with the first being 35.
- 55 can be a big blue space rocket, and a step squad.
- 55 is the first Step Squad to have a permanent mask but no boots.
- 55 is so far the only multiple of 11 to have eyes that are the same size.
- Some fans think that his eyes are actually different-sized, it's just the eyeholes on the stepmask that are the same size.
- 55 is the tenth step squad, following 1, 3, 6, 10, 15, 21, 28, 36 and 45.
An image of Fifty-Five that went popular on Discord.
Starship explorer Fifty-Five is mostly seen as a rocket ship, but he also occasionally appears as a step shape or in a 5x11 rectangle.
Five Tens and Five Low (11x5)
Stairs / Triangular (1R+2R+3R+4R+5R+6R+7R+8R+9R+10)
Five Tens and Five ((5x5)L+6x5)
Five Tens and Five 2 ((5x4)L+6x5+5L)
Five Tens and Five 3 ((5x3)L+6x5+(5x2)L)
Five Tens and Five 4 ((5x2)L+6x5+(5x3)L)
Rocket Ship ((1x8)C+(3x3)C+5x4+(2[>]2)x3+(1[>3]1)x3)
Shifted Rocket Ship ((1x8)C+(3x2)C+5x5+(2[>]2)x3+(1[>3]1)x2)
||Zero, One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen, Twenty, Twenty-One, Twenty-Two, Twenty-Three, Twenty-Four, Twenty-Five, Twenty-Six, Twenty-Seven, Twenty-Eight, Twenty-Nine, Thirty, Thirty-One, Thirty-Two, Thirty-Five, Thirty-Six, Forty, Forty-Five, Forty-Nine, Fifty, Fifty-Five, Sixty, Sixty-Four, Seventy, Eighty, Eighty-One, Ninety, One Hundred
|Undiscovered / Non-physical
||Forty-Two, Ninety-Nine, Two Hundred, Three Hundred, Nine Hundred, One Thousand, Seven Thousand, Ninety Thousand, Orders of Magnitude, Compound Numberblocks
||The Terrible Twos, Octoblock, The Three Threes, Octonaughty, Step Squad, The Four Fours
||Flapjack Snaffler, Blockzilla, Big Tum, Twangle
||One Times Table, Two Times Table, Three Times Table, Four Times Table, Five Times Table, Ten Times Table
||Fluffies, Squarey, Oblongy, Numberblobs, Aliens, Rainbows, Flatlanders, Birds, What-Iffer