56506260565 has 8 divisors (see below), whose sum is σ = 67817253888. Its totient is φ = 45198514320.

The previous prime is 56506260563. The next prime is 56506260571.

56506260565 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56506260565 - 2¹ = 56506260563 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 (56506260563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773317 + ... + 843226.

It is an arithmetic number, because the mean of its divisors is an integer number (8477156736).

Almost surely, 2^56506260565 is an apocalyptic number.

It is an amenable number.

56506260565 is a deficient number, since it is larger than the sum of its proper divisors (11310993323).

56506260565 is a wasteful number, since it uses less digits than its factorization.

56506260565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623539.

The product of its (nonzero) digits is 1620000, while the sum is 46.

Subtracting from 56506260565 its product of nonzero digits (1620000), we obtain a palindrome (56504640565).

The spelling of 56506260565 in words is "fifty-six billion, five hundred six million, two hundred sixty thousand, five hundred sixty-five".