56231497599 has 4 divisors (see below), whose sum is σ = 74975330136. Its totient is φ = 37487665064.

The previous prime is 56231497589. The next prime is 56231497607. The reversal of 56231497599 is 99579413265.

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

It is a cyclic number.

It is not a de Polignac number, because 56231497599 - 2⁷ = 56231497471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56231497589) 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, 9371916264 + ... + 9371916269.

It is an arithmetic number, because the mean of its divisors is an integer number (18743832534).

Almost surely, 2^56231497599 is an apocalyptic number.

56231497599 is a deficient number, since it is larger than the sum of its proper divisors (18743832537).

56231497599 is a wasteful number, since it uses less digits than its factorization.

56231497599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18743832536.

The product of its digits is 18370800, while the sum is 60.

The spelling of 56231497599 in words is "fifty-six billion, two hundred thirty-one million, four hundred ninety-seven thousand, five hundred ninety-nine".