55117374432 has 96 divisors (see below), whose sum is σ = 159854591232. Its totient is φ = 16539899904.

The previous prime is 55117374401. The next prime is 55117374437. The reversal of 55117374432 is 23447371155.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55117374437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696658 + ... + 771729.

It is an arithmetic number, because the mean of its divisors is an integer number (1665151992).

Almost surely, 2^55117374432 is an apocalyptic number.

It is an amenable number.

55117374432 is an abundant number, since it is smaller than the sum of its proper divisors (104737216800).

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

55117374432 is a wasteful number, since it uses less digits than its factorization.

55117374432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468440 (or 1468432 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The spelling of 55117374432 in words is "fifty-five billion, one hundred seventeen million, three hundred seventy-four thousand, four hundred thirty-two".