56155116 has 24 divisors (see below), whose sum is σ = 131194224. Its totient is φ = 18694720.

The previous prime is 56155111. The next prime is 56155129. The reversal of 56155116 is 61155165.

It is not an unprimeable number, because it can be changed into a prime (56155111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8806 + ... + 13778.

It is an arithmetic number, because the mean of its divisors is an integer number (5466426).

Almost surely, 2^56155116 is an apocalyptic number.

It is an amenable number.

56155116 is an abundant number, since it is smaller than the sum of its proper divisors (75039108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56155116 is a wasteful number, since it uses less digits than its factorization.

56155116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921 (or 5919 counting only the distinct ones).

The product of its digits is 4500, while the sum is 30.

The square root of 56155116 is about 7493.6717302001. The cubic root of 56155116 is about 382.9391564164.

It can be divided in two parts, 5615 and 5116, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 56155116 in words is "fifty-six million, one hundred fifty-five thousand, one hundred sixteen".