55055504988 has 72 divisors (see below), whose sum is σ = 151845482880. Its totient is φ = 16680656160.

The previous prime is 55055504893. The next prime is 55055505017. The reversal of 55055504988 is 88940555055.

55055504988 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 550 + 4 + 9 + 88 = 666.

It is a super-2 number, since 2×55055504988² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4579281 + ... + 4591287.

It is an arithmetic number, because the mean of its divisors is an integer number (2108965040).

Almost surely, 2^55055504988 is an apocalyptic number.

It is an amenable number.

55055504988 is an abundant number, since it is smaller than the sum of its proper divisors (96789977892).

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

55055504988 is a wasteful number, since it uses less digits than its factorization.

55055504988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23607 (or 23602 counting only the distinct ones).

The product of its (nonzero) digits is 7200000, while the sum is 54.

The spelling of 55055504988 in words is "fifty-five billion, fifty-five million, five hundred four thousand, nine hundred eighty-eight".