56501055659 has 4 divisors (see below), whose sum is σ = 56535912960. Its totient is φ = 56466198360.

The previous prime is 56501055647. The next prime is 56501055661. The reversal of 56501055659 is 95655010565.

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 56501055659 - 2²⁸ = 56232620203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56501055679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17426219 + ... + 17429460.

It is an arithmetic number, because the mean of its divisors is an integer number (14133978240).

Almost surely, 2^56501055659 is an apocalyptic number.

56501055659 is a deficient number, since it is larger than the sum of its proper divisors (34857301).

56501055659 is a wasteful number, since it uses less digits than its factorization.

56501055659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34857300.

The product of its (nonzero) digits is 1012500, while the sum is 47.

The spelling of 56501055659 in words is "fifty-six billion, five hundred one million, fifty-five thousand, six hundred fifty-nine".