56513523623571 has 24 divisors (see below), whose sum is σ = 93349506142464. Its totient is φ = 32273593553520.

The previous prime is 56513523623551. The next prime is 56513523623597. The reversal of 56513523623571 is 17532632531565.

56513523623571 is a `hidden beast` number, since 5 + 6 + 5 + 1 + 3 + 5 + 2 + 3 + 62 + 3 + 571 = 666.

It is not a de Polignac number, because 56513523623571 - 2¹³ = 56513523615379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56513523623551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275570535 + ... + 275775536.

It is an arithmetic number, because the mean of its divisors is an integer number (3889562755936).

Almost surely, 2^{56513523623571} is an apocalyptic number.

56513523623571 is a deficient number, since it is larger than the sum of its proper divisors (36835982518893).

56513523623571 is a wasteful number, since it uses less digits than its factorization.

56513523623571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551347711 (or 551347708 counting only the distinct ones).

The product of its digits is 17010000, while the sum is 54.

The spelling of 56513523623571 in words is "fifty-six trillion, five hundred thirteen billion, five hundred twenty-three million, six hundred twenty-three thousand, five hundred seventy-one".