56566504 has 8 divisors (see below), whose sum is σ = 106062210. Its totient is φ = 28283248.

The previous prime is 56566487. The next prime is 56566507. The reversal of 56566504 is 40566565.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 1954404 = 7390^2 + 1398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (56566507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3535399 + ... + 3535414.

Almost surely, 2^56566504 is an apocalyptic number.

It is an amenable number.

56566504 is a deficient number, since it is larger than the sum of its proper divisors (49495706).

56566504 is a wasteful number, since it uses less digits than its factorization.

56566504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070819 (or 7070815 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 56566504 is about 7521.0706684620. The cubic root of 56566504 is about 383.8720095725.

The spelling of 56566504 in words is "fifty-six million, five hundred sixty-six thousand, five hundred four".