56122015172 has 24 divisors (see below), whose sum is σ = 99245675256. Its totient is φ = 27766222848.

The previous prime is 56122015127. The next prime is 56122015189. The reversal of 56122015172 is 27151022165.

It can be written as a sum of positive squares in 4 ways, for example, as 17385477316 + 38736537856 = 131854^2 + 196816^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2531528 + ... + 2553600.

It is an arithmetic number, because the mean of its divisors is an integer number (4135236469).

Almost surely, 2^56122015172 is an apocalyptic number.

It is an amenable number.

56122015172 is a deficient number, since it is larger than the sum of its proper divisors (43123660084).

56122015172 is a wasteful number, since it uses less digits than its factorization.

56122015172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28727 (or 28725 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 56122015172 in words is "fifty-six billion, one hundred twenty-two million, fifteen thousand, one hundred seventy-two".