56608387571 has 4 divisors (see below), whose sum is σ = 56855586000. Its totient is φ = 56361189144.

The previous prime is 56608387553. The next prime is 56608387573. The reversal of 56608387571 is 17578380665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56608387571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56608387573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123598871 + ... + 123599328.

It is an arithmetic number, because the mean of its divisors is an integer number (14213896500).

Almost surely, 2^56608387571 is an apocalyptic number.

56608387571 is a deficient number, since it is larger than the sum of its proper divisors (247198429).

56608387571 is a wasteful number, since it uses less digits than its factorization.

56608387571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247198428.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 56608387571 in words is "fifty-six billion, six hundred eight million, three hundred eighty-seven thousand, five hundred seventy-one".