56121164 has 24 divisors (see below), whose sum is σ = 107542848. Its totient is φ = 25413840.

The previous prime is 56121161. The next prime is 56121167. The reversal of 56121164 is 46112165.

56121164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56121161) and next prime (56121167).

It is not an unprimeable number, because it can be changed into a prime (56121161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10199 + ... + 14705.

It is an arithmetic number, because the mean of its divisors is an integer number (4480952).

Almost surely, 2^56121164 is an apocalyptic number.

It is an amenable number.

56121164 is a deficient number, since it is larger than the sum of its proper divisors (51421684).

56121164 is a wasteful number, since it uses less digits than its factorization.

56121164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805 (or 4803 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 56121164 is about 7491.4060095552. The cubic root of 56121164 is about 382.8619644504.

It can be divided in two parts, 5612 and 1164, that added together give a palindrome (6776).

The spelling of 56121164 in words is "fifty-six million, one hundred twenty-one thousand, one hundred sixty-four".