55116125988 has 384 divisors, whose sum is σ = 169554739200. Its totient is φ = 13520908800.

The previous prime is 55116125971. The next prime is 55116126011. The reversal of 55116125988 is 88952161155.

55116125988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55116125988² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55116125988.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 396518823 + ... + 396518961.

It is an arithmetic number, because the mean of its divisors is an integer number (441548800).

Almost surely, 2^55116125988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55116125988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84777369600).

55116125988 is an abundant number, since it is smaller than the sum of its proper divisors (114438613212).

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

55116125988 is a wasteful number, since it uses less digits than its factorization.

55116125988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 429 counting only the distinct ones).

The product of its digits is 864000, while the sum is 51.

The spelling of 55116125988 in words is "fifty-five billion, one hundred sixteen million, one hundred twenty-five thousand, nine hundred eighty-eight".