56510604 has 36 divisors (see below), whose sum is σ = 144864720. Its totient is φ = 18570720.

The previous prime is 56510603. The next prime is 56510621. The reversal of 56510604 is 40601565.

It is a happy number.

56510604 is a `hidden beast` number, since 5 + 6 + 51 + 0 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 not an unprimeable number, because it can be changed into a prime (56510603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8499 + ... + 13610.

It is an arithmetic number, because the mean of its divisors is an integer number (4024020).

Almost surely, 2^56510604 is an apocalyptic number.

It is an amenable number.

56510604 is an abundant number, since it is smaller than the sum of its proper divisors (88354116).

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

56510604 is a wasteful number, since it uses less digits than its factorization.

56510604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22190 (or 22185 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 56510604 is about 7517.3535236811. The cubic root of 56510604 is about 383.7455182379.

The spelling of 56510604 in words is "fifty-six million, five hundred ten thousand, six hundred four".