55971927 has 24 divisors (see below), whose sum is σ = 89451648. Its totient is φ = 33440400.

The previous prime is 55971919. The next prime is 55971931. The reversal of 55971927 is 72917955.

55971927 is a `hidden beast` number, since 559 + 7 + 1 + 92 + 7 = 666.

It is not a de Polignac number, because 55971927 - 2³ = 55971919 is a prime.

It is a super-2 number, since 2×55971927² = 6265713224186658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55971907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3048 + ... + 11010.

It is an arithmetic number, because the mean of its divisors is an integer number (3727152).

Almost surely, 2^55971927 is an apocalyptic number.

55971927 is a deficient number, since it is larger than the sum of its proper divisors (33479721).

55971927 is a wasteful number, since it uses less digits than its factorization.

55971927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051 (or 8048 counting only the distinct ones).

The product of its digits is 198450, while the sum is 45.

The square root of 55971927 is about 7481.4388322033. The cubic root of 55971927 is about 382.5222952530.

The spelling of 55971927 in words is "fifty-five million, nine hundred seventy-one thousand, nine hundred twenty-seven".