It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 90556.
It is a congruent number.
It is an unprimeable number.
90556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
290556 is an apocalyptic number.
It is an amenable number.
90556 is a wasteful number, since it uses less digits than its factorization.
90556 is an odious number, because the sum of its binary digits is odd.
The square root of 90556 is about 300.9252398853. The cubic root of 90556 is about 44.9061418212.
The spelling of 90556 in words is "ninety thousand, five hundred fifty-six".