55553318576 has 20 divisors (see below), whose sum is σ = 123010919952. Its totient is φ = 23808565056.

The previous prime is 55553318567. The next prime is 55553318627. The reversal of 55553318576 is 67581335555.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 248005775 + ... + 248005998.

Almost surely, 2^55553318576 is an apocalyptic number.

55553318576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55553318576 is an abundant number, since it is smaller than the sum of its proper divisors (67457601376).

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

55553318576 is a wasteful number, since it uses less digits than its factorization.

55553318576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496011788 (or 496011782 counting only the distinct ones).

The product of its digits is 9450000, while the sum is 53.

The spelling of 55553318576 in words is "fifty-five billion, five hundred fifty-three million, three hundred eighteen thousand, five hundred seventy-six".