55501056 has 216 divisors, whose sum is σ = 184143960. Its totient is φ = 15925248.

The previous prime is 55501027. The next prime is 55501079. The reversal of 55501056 is 65010555.

55501056 is a `hidden beast` number, since 5 + 550 + 105 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10342656 + 45158400 = 3216^2 + 6720^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509130 + ... + 509238.

Almost surely, 2^55501056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55501056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92071980).

55501056 is an abundant number, since it is smaller than the sum of its proper divisors (128642904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55501056 is a wasteful number, since it uses less digits than its factorization.

55501056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 55501056 is about 7449.9030866180. The cubic root of 55501056 is about 381.4466005269.

The spelling of 55501056 in words is "fifty-five million, five hundred one thousand, fifty-six".