56544444565 has 16 divisors (see below), whose sum is σ = 77723331840. Its totient is φ = 38685000960.

The previous prime is 56544444487. The next prime is 56544444601.

56544444565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56544444565 - 2¹⁵ = 56544411797 is a prime.

It is a super-2 number, since 2×56544444565² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824676 + ... + 1855405.

It is an arithmetic number, because the mean of its divisors is an integer number (4857708240).

Almost surely, 2^56544444565 is an apocalyptic number.

It is an amenable number.

56544444565 is a deficient number, since it is larger than the sum of its proper divisors (21178887275).

56544444565 is a wasteful number, since it uses less digits than its factorization.

56544444565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680532.

The product of its digits is 23040000, while the sum is 52.

The spelling of 56544444565 in words is "fifty-six billion, five hundred forty-four million, four hundred forty-four thousand, five hundred sixty-five".