56534843565 has 64 divisors (see below), whose sum is σ = 103881688320. Its totient is φ = 29149735680.

The previous prime is 56534843489. The next prime is 56534843569.

56534843565 is a `hidden beast` number, since 5 + 6 + 5 + 34 + 8 + 43 + 565 = 666.

56534843565 is nontrivially palindromic in base 10.

56534843565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56534843565 - 2¹⁶ = 56534778029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56534843569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 748170 + ... + 820260.

It is an arithmetic number, because the mean of its divisors is an integer number (1623151380).

Almost surely, 2^56534843565 is an apocalyptic number.

It is an amenable number.

56534843565 is a deficient number, since it is larger than the sum of its proper divisors (47346844755).

56534843565 is a wasteful number, since it uses less digits than its factorization.

56534843565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72299 (or 72293 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 54.

The spelling of 56534843565 in words is "fifty-six billion, five hundred thirty-four million, eight hundred forty-three thousand, five hundred sixty-five".