56521138595 has 4 divisors (see below), whose sum is σ = 67825366320. Its totient is φ = 45216910872.

The previous prime is 56521138589. The next prime is 56521138627. The reversal of 56521138595 is 59583112565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56521138595 - 2²⁴ = 56504361379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652113855 + ... + 5652113864.

It is an arithmetic number, because the mean of its divisors is an integer number (16956341580).

Almost surely, 2^56521138595 is an apocalyptic number.

56521138595 is a deficient number, since it is larger than the sum of its proper divisors (11304227725).

56521138595 is a wasteful number, since it uses less digits than its factorization.

56521138595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11304227724.

The product of its digits is 1620000, while the sum is 50.

The spelling of 56521138595 in words is "fifty-six billion, five hundred twenty-one million, one hundred thirty-eight thousand, five hundred ninety-five".