56561570559 has 12 divisors (see below), whose sum is σ = 87984665496. Its totient is φ = 34807120272.

The previous prime is 56561570557. The next prime is 56561570591. The reversal of 56561570559 is 95507516565.

56561570559 is a `hidden beast` number, since 5 + 6 + 5 + 6 + 15 + 70 + 559 = 666.

It is not a de Polignac number, because 56561570559 - 2¹ = 56561570557 is a prime.

It is a super-2 number, since 2×56561570559² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56561570557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241715997 + ... + 241716230.

It is an arithmetic number, because the mean of its divisors is an integer number (7332055458).

Almost surely, 2^56561570559 is an apocalyptic number.

56561570559 is a deficient number, since it is larger than the sum of its proper divisors (31423094937).

56561570559 is a wasteful number, since it uses less digits than its factorization.

56561570559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483432246 (or 483432243 counting only the distinct ones).

The product of its (nonzero) digits is 7087500, while the sum is 54.

The spelling of 56561570559 in words is "fifty-six billion, five hundred sixty-one million, five hundred seventy thousand, five hundred fifty-nine".