55503874816 has 36 divisors (see below), whose sum is σ = 119313324592. Its totient is φ = 25617171456.

The previous prime is 55503874799. The next prime is 55503874837. The reversal of 55503874816 is 61847830555.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8335596 + ... + 8342251.

Almost surely, 2^55503874816 is an apocalyptic number.

It is an amenable number.

55503874816 is an abundant number, since it is smaller than the sum of its proper divisors (63809449776).

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

55503874816 is a wasteful number, since it uses less digits than its factorization.

55503874816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677876 (or 16677862 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 55503874816 in words is "fifty-five billion, five hundred three million, eight hundred seventy-four thousand, eight hundred sixteen".