56565600517 has 4 divisors (see below), whose sum is σ = 56568588736. Its totient is φ = 56562612300.

The previous prime is 56565600491. The next prime is 56565600617. The reversal of 56565600517 is 71500656565.

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 56565600517 - 2¹⁹ = 56565076229 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 (56565600617) 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, 1465533 + ... + 1503634.

It is an arithmetic number, because the mean of its divisors is an integer number (14142147184).

Almost surely, 2^56565600517 is an apocalyptic number.

It is an amenable number.

56565600517 is a deficient number, since it is larger than the sum of its proper divisors (2988219).

56565600517 is a wasteful number, since it uses less digits than its factorization.

56565600517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988218.

The product of its (nonzero) digits is 945000, while the sum is 46.

The spelling of 56565600517 in words is "fifty-six billion, five hundred sixty-five million, six hundred thousand, five hundred seventeen".