56055015018 has 96 divisors (see below), whose sum is σ = 130423468032. Its totient is φ = 17358026400.

The previous prime is 56055015013. The next prime is 56055015019. The reversal of 56055015018 is 81051055065.

56055015018 is a `hidden beast` number, since 56 + 0 + 550 + 1 + 50 + 1 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56055015013) 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 47 ways as a sum of consecutive naturals, for example, 2538003 + ... + 2559993.

It is an arithmetic number, because the mean of its divisors is an integer number (1358577792).

Almost surely, 2^56055015018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56055015018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65211734016).

56055015018 is an abundant number, since it is smaller than the sum of its proper divisors (74368453014).

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

56055015018 is a wasteful number, since it uses less digits than its factorization.

56055015018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22200 (or 22197 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 56055015018 in words is "fifty-six billion, fifty-five million, fifteen thousand, eighteen".