56520002565 has 72 divisors (see below), whose sum is σ = 106212263040. Its totient is φ = 27791517312.

The previous prime is 56520002557. The next prime is 56520002587.

56520002565 is a `hidden beast` number, since 56 + 520 + 0 + 0 + 25 + 65 = 666.

56520002565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56520002565 - 2³ = 56520002557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6984952 + ... + 6993038.

It is an arithmetic number, because the mean of its divisors is an integer number (1475170320).

Almost surely, 2^56520002565 is an apocalyptic number.

It is an amenable number.

56520002565 is a deficient number, since it is larger than the sum of its proper divisors (49692260475).

56520002565 is a wasteful number, since it uses less digits than its factorization.

56520002565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043 (or 9027 counting only the distinct ones).

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

It can be divided in two parts, 5652000 and 2565, that added together give a palindrome (5654565).

The spelling of 56520002565 in words is "fifty-six billion, five hundred twenty million, two thousand, five hundred sixty-five".