56554445565 has 32 divisors (see below), whose sum is σ = 101332930560. Its totient is φ = 29924862912.

The previous prime is 56554445557. The next prime is 56554445569.

56554445565 is a `hidden beast` number, since 5 + 6 + 5 + 544 + 45 + 56 + 5 = 666.

56554445565 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56554445565 - 2³ = 56554445557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56554445569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1632154 + ... + 1666443.

It is an arithmetic number, because the mean of its divisors is an integer number (3166654080).

Almost surely, 2^56554445565 is an apocalyptic number.

It is an amenable number.

56554445565 is a deficient number, since it is larger than the sum of its proper divisors (44778484995).

56554445565 is a wasteful number, since it uses less digits than its factorization.

56554445565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298738 (or 3298732 counting only the distinct ones).

The product of its digits is 36000000, while the sum is 54.

The spelling of 56554445565 in words is "fifty-six billion, five hundred fifty-four million, four hundred forty-five thousand, five hundred sixty-five".