56878125315 has 16 divisors (see below), whose sum is σ = 99278182656. Its totient is φ = 27577272800.

The previous prime is 56878125307. The next prime is 56878125319. The reversal of 56878125315 is 51352187865.

It is not a de Polignac number, because 56878125315 - 2³ = 56878125307 is a prime.

It is a super-2 number, since 2×56878125315² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56878125319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172357791 + ... + 172358120.

It is an arithmetic number, because the mean of its divisors is an integer number (6204886416).

Almost surely, 2^56878125315 is an apocalyptic number.

56878125315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56878125315 is a deficient number, since it is larger than the sum of its proper divisors (42400057341).

56878125315 is a wasteful number, since it uses less digits than its factorization.

56878125315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344715930.

The product of its digits is 2016000, while the sum is 51.

The spelling of 56878125315 in words is "fifty-six billion, eight hundred seventy-eight million, one hundred twenty-five thousand, three hundred fifteen".