56131359823 has 32 divisors (see below), whose sum is σ = 73544993280. Its totient is φ = 41566815360.

The previous prime is 56131359811. The next prime is 56131359839. The reversal of 56131359823 is 32895313165.

It is a de Polignac number, because none of the positive numbers 2^k-56131359823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56131359803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106588 + ... + 351601.

It is an arithmetic number, because the mean of its divisors is an integer number (2298281040).

Almost surely, 2^56131359823 is an apocalyptic number.

56131359823 is a deficient number, since it is larger than the sum of its proper divisors (17413633457).

56131359823 is a wasteful number, since it uses less digits than its factorization.

56131359823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458287.

The product of its digits is 583200, while the sum is 46.

The spelling of 56131359823 in words is "fifty-six billion, one hundred thirty-one million, three hundred fifty-nine thousand, eight hundred twenty-three".