55277312477200 has 90 divisors (see below), whose sum is σ = 145974362517242. Its totient is φ = 20100840883200.

The previous prime is 55277312477183. The next prime is 55277312477213. The reversal of 55277312477200 is 277421377255.

It can be written as a sum of positive squares in 3 ways, for example, as 273374213904 + 55003938263296 = 522852^2 + 7416464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 570998217 + ... + 571095016.

Almost surely, 2^{55277312477200} is an apocalyptic number.

55277312477200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55277312477200 is an abundant number, since it is smaller than the sum of its proper divisors (90697050040042).

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

55277312477200 is a wasteful number, since it uses less digits than its factorization.

55277312477200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142093273 (or 1142093251 counting only the distinct ones).

The product of its (nonzero) digits is 5762400, while the sum is 52.

The spelling of 55277312477200 in words is "fifty-five trillion, two hundred seventy-seven billion, three hundred twelve million, four hundred seventy-seven thousand, two hundred".