55271511972 has 24 divisors (see below), whose sum is σ = 143296512800. Its totient is φ = 18423837288.

The previous prime is 55271511959. The next prime is 55271512103. The reversal of 55271511972 is 27911517255.

55271511972 is a `hidden beast` number, since 5 + 527 + 1 + 5 + 119 + 7 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255886522 + ... + 255886737.

Almost surely, 2^55271511972 is an apocalyptic number.

It is an amenable number.

55271511972 is an abundant number, since it is smaller than the sum of its proper divisors (88025000828).

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

55271511972 is a wasteful number, since it uses less digits than its factorization.

55271511972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511773272 (or 511773264 counting only the distinct ones).

The product of its digits is 220500, while the sum is 45.

The spelling of 55271511972 in words is "fifty-five billion, two hundred seventy-one million, five hundred eleven thousand, nine hundred seventy-two".