56122815 has 32 divisors (see below), whose sum is σ = 103057920. Its totient is φ = 25547904.

The previous prime is 56122769. The next prime is 56122817. The reversal of 56122815 is 51822165.

It is not a de Polignac number, because 56122815 - 2⁷ = 56122687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56122817) 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 31 ways as a sum of consecutive naturals, for example, 27252 + ... + 29238.

It is an arithmetic number, because the mean of its divisors is an integer number (3220560).

Almost surely, 2^56122815 is an apocalyptic number.

56122815 is a deficient number, since it is larger than the sum of its proper divisors (46935105).

56122815 is a wasteful number, since it uses less digits than its factorization.

56122815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271.

The product of its digits is 4800, while the sum is 30.

The square root of 56122815 is about 7491.5162016777. The cubic root of 56122815 is about 382.8657188208.

The spelling of 56122815 in words is "fifty-six million, one hundred twenty-two thousand, eight hundred fifteen".