56004736517 has 4 divisors (see below), whose sum is σ = 56317612320. Its totient is φ = 55691860716.

The previous prime is 56004736511. The next prime is 56004736537. The reversal of 56004736517 is 71563740065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56004736517 - 2²⁰ = 56003687941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56004736511) 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, 156437633 + ... + 156437990.

It is an arithmetic number, because the mean of its divisors is an integer number (14079403080).

Almost surely, 2^56004736517 is an apocalyptic number.

It is an amenable number.

56004736517 is a deficient number, since it is larger than the sum of its proper divisors (312875803).

56004736517 is a wasteful number, since it uses less digits than its factorization.

56004736517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312875802.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 56004736517 in words is "fifty-six billion, four million, seven hundred thirty-six thousand, five hundred seventeen".