55197827271 has 16 divisors (see below), whose sum is σ = 81792357120. Its totient is φ = 36790542360.

The previous prime is 55197827231. The next prime is 55197827291. The reversal of 55197827271 is 17272879155.

55197827271 is a `hidden beast` number, since 551 + 9 + 7 + 82 + 7 + 2 + 7 + 1 = 666.

It is not a de Polignac number, because 55197827271 - 2¹⁹ = 55197302983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55197827231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94795 + ... + 345516.

It is an arithmetic number, because the mean of its divisors is an integer number (5112022320).

Almost surely, 2^55197827271 is an apocalyptic number.

55197827271 is a deficient number, since it is larger than the sum of its proper divisors (26594529849).

55197827271 is a wasteful number, since it uses less digits than its factorization.

55197827271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444963 (or 444957 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 54.

The spelling of 55197827271 in words is "fifty-five billion, one hundred ninety-seven million, eight hundred twenty-seven thousand, two hundred seventy-one".