56556504 has 48 divisors (see below), whose sum is σ = 153546120. Its totient is φ = 18806400.

The previous prime is 56556491. The next prime is 56556523. The reversal of 56556504 is 40565565.

It is a happy number.

56556504 is a `hidden beast` number, since 56 + 556 + 50 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42619 + ... + 43925.

Almost surely, 2^56556504 is an apocalyptic number.

It is an amenable number.

56556504 is an abundant number, since it is smaller than the sum of its proper divisors (96989616).

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

56556504 is a wasteful number, since it uses less digits than its factorization.

56556504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 56556504 is about 7520.4058401126. The cubic root of 56556504 is about 383.8493875491.

The spelling of 56556504 in words is "fifty-six million, five hundred fifty-six thousand, five hundred four".