Forty-Nine or 49 is a Numberblock made of 49 Blocks. They are a 7 by 7 Square. They first appeared in The Big One as a compound, and their last appearance was in More To Explore in the square temple.
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-Five, Thirty, Forty, Fifty, Sixty, Seventy, Eighty, Ninety, One Hundred, One Thousand, Ten Thousand, One Hundred Thousand, One Million
Big Bad Square, The Terrible Twos, Octoblock, The Three Threes, Octonaughty, Step Squad, The Four Fours
Twenty-Three, Twenty-Four, Thirty-Five, Thirty-Six, Forty-Two, Forty-Nine, Sixty-Four, Ninety-Nine, Two Hundred, Three Hundred
Flapjack Snaffler, Blockzilla, Big Tum
Fluffies, Squarey, Numberblobs, Aliens, Rainbows, Flatlanders, Alphablocks