56390609365 has 16 divisors (see below), whose sum is σ = 70543213056. Its totient is φ = 43224984000.

The previous prime is 56390609311. The next prime is 56390609389.

It is a happy number.

56390609365 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-56390609365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1785387 + ... + 1816696.

It is an arithmetic number, because the mean of its divisors is an integer number (4408950816).

Almost surely, 2^56390609365 is an apocalyptic number.

It is an amenable number.

56390609365 is a deficient number, since it is larger than the sum of its proper divisors (14152603691).

56390609365 is a wasteful number, since it uses less digits than its factorization.

56390609365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602220.

The product of its (nonzero) digits is 3936600, while the sum is 52.

The spelling of 56390609365 in words is "fifty-six billion, three hundred ninety million, six hundred nine thousand, three hundred sixty-five".