55117624980 has 96 divisors (see below), whose sum is σ = 172909618560. Its totient is φ = 13000711680.

The previous prime is 55117624979. The next prime is 55117624987. The reversal of 55117624980 is 8942671155.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55117624987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1104115 + ... + 1152954.

It is an arithmetic number, because the mean of its divisors is an integer number (1801141860).

Almost surely, 2^55117624980 is an apocalyptic number.

It is an amenable number.

55117624980 is an abundant number, since it is smaller than the sum of its proper divisors (117791993580).

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

55117624980 is a wasteful number, since it uses less digits than its factorization.

55117624980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257129 (or 2257127 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 55117624980 in words is "fifty-five billion, one hundred seventeen million, six hundred twenty-four thousand, nine hundred eighty".