56565504 has 54 divisors (see below), whose sum is σ = 163098936. Its totient is φ = 18854400.

The previous prime is 56565503. The next prime is 56565517. The reversal of 56565504 is 40556565.

It is a happy number.

56565504 is a `hidden beast` number, since 56 + 56 + 550 + 4 = 666.

56565504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56565503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9972 + ... + 14579.

Almost surely, 2^56565504 is an apocalyptic number.

It is an amenable number.

56565504 is an abundant number, since it is smaller than the sum of its proper divisors (106533432).

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

56565504 is a wasteful number, since it uses less digits than its factorization.

56565504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24573 (or 24556 counting only the distinct ones).

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

The square root of 56565504 is about 7521.0041882717. The cubic root of 56565504 is about 383.8697474901.

The spelling of 56565504 in words is "fifty-six million, five hundred sixty-five thousand, five hundred four".