56000000065 has 32 divisors (see below), whose sum is σ = 72074419200. Its totient is φ = 41676284160.

The previous prime is 56000000039. The next prime is 56000000093.

56000000065 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-56000000065 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55999999982 and 56000000045.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1002154 + ... + 1056556.

It is an arithmetic number, because the mean of its divisors is an integer number (2252325600).

Almost surely, 2^56000000065 is an apocalyptic number.

It is an amenable number.

56000000065 is a deficient number, since it is larger than the sum of its proper divisors (16074419135).

56000000065 is a wasteful number, since it uses less digits than its factorization.

56000000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54697.

The product of its (nonzero) digits is 900, while the sum is 22.

It can be divided in two parts, 560000000 and 65, that added together give a palindrome (560000065).

The spelling of 56000000065 in words is "fifty-six billion, sixty-five", and thus it is an aban number and an uban number.