55318032200 has 36 divisors (see below), whose sum is σ = 128622158745. Its totient is φ = 22125882400.

The previous prime is 55318032197. The next prime is 55318032233. The reversal of 55318032200 is 223081355.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 54211671556 + 1106360644 = 232834^2 + 33262^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166310.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3317885 + ... + 3334515.

Almost surely, 2^55318032200 is an apocalyptic number.

55318032200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55318032200 is an abundant number, since it is smaller than the sum of its proper divisors (73304126545).

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

55318032200 is an frugal number, since it uses more digits than its factorization.

55318032200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33278 (or 16638 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Multiplying 55318032200 by its product of nonzero digits (7200), we get a square (398289831840000 = 19957200²).

The spelling of 55318032200 in words is "fifty-five billion, three hundred eighteen million, thirty-two thousand, two hundred".