56856875331 has 16 divisors (see below), whose sum is σ = 76978142208. Its totient is φ = 37321502400.

The previous prime is 56856875321. The next prime is 56856875347. The reversal of 56856875331 is 13357865865.

It is not a de Polignac number, because 56856875331 - 2⁶ = 56856875267 is a prime.

It is a super-2 number, since 2×56856875331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56856875321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13291 + ... + 337476.

It is an arithmetic number, because the mean of its divisors is an integer number (4811133888).

Almost surely, 2^56856875331 is an apocalyptic number.

56856875331 is a deficient number, since it is larger than the sum of its proper divisors (20121266877).

56856875331 is a wasteful number, since it uses less digits than its factorization.

56856875331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351602.

The product of its digits is 18144000, while the sum is 57.

The spelling of 56856875331 in words is "fifty-six billion, eight hundred fifty-six million, eight hundred seventy-five thousand, three hundred thirty-one".