56207120565 has 16 divisors (see below), whose sum is σ = 89939219328. Its totient is φ = 29974522176.

The previous prime is 56207120533. The next prime is 56207120569. The reversal of 56207120565 is 56502170265.

It is not a de Polignac number, because 56207120565 - 2⁵ = 56207120533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56207120569) by changing a digit.

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, 21819 + ... + 335991.

It is an arithmetic number, because the mean of its divisors is an integer number (5621201208).

Almost surely, 2^56207120565 is an apocalyptic number.

It is an amenable number.

56207120565 is a deficient number, since it is larger than the sum of its proper divisors (33732098763).

56207120565 is a wasteful number, since it uses less digits than its factorization.

56207120565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326108.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 56207120565 in words is "fifty-six billion, two hundred seven million, one hundred twenty thousand, five hundred sixty-five".