32 go wikipedia, go!

32 is the smallest number n with exactly 7 solutions to the equation Æ(x) = n. It is also the sum of the totient function for the first ten integers.

The fifth power of two, 32 is also a Leyland number since 2^4 + 4^2 = 32.

As with every power of two, 32 has an aliquot sum one less than itself: the prime 31. 32 is the first member of the 31-aliquot tree.

32 is the ninth happy number.

32 = 1^1 + 2^2 + 3^3