56544244565 has 4 divisors (see below), whose sum is σ = 67853093484. Its totient is φ = 45235395648.

The previous prime is 56544244543. The next prime is 56544244609.

56544244565 is nontrivially palindromic in base 10.

56544244565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31761299089 + 24782945476 = 178217^2 + 157426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56544244565 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5654424452 + ... + 5654424461.

It is an arithmetic number, because the mean of its divisors is an integer number (16963273371).

Almost surely, 2^56544244565 is an apocalyptic number.

It is an amenable number.

56544244565 is a deficient number, since it is larger than the sum of its proper divisors (11308848919).

56544244565 is a wasteful number, since it uses less digits than its factorization.

56544244565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11308848918.

The product of its digits is 11520000, while the sum is 50.

The spelling of 56544244565 in words is "fifty-six billion, five hundred forty-four million, two hundred forty-four thousand, five hundred sixty-five".