55927161 has 12 divisors (see below), whose sum is σ = 85535892. Its totient is φ = 35091456.

The previous prime is 55927147. The next prime is 55927163. The reversal of 55927161 is 16172955.

55927161 is a `hidden beast` number, since 5 + 592 + 7 + 1 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15210000 + 40717161 = 3900^2 + 6381^2 .

It is not a de Polignac number, because 55927161 - 2⁵ = 55927129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55927163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182616 + ... + 182921.

It is an arithmetic number, because the mean of its divisors is an integer number (7127991).

Almost surely, 2^55927161 is an apocalyptic number.

55927161 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

55927161 is a deficient number, since it is larger than the sum of its proper divisors (29608731).

55927161 is a wasteful number, since it uses less digits than its factorization.

55927161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365560 (or 365557 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 55927161 is about 7478.4464295735. The cubic root of 55927161 is about 382.4202884004.

The spelling of 55927161 in words is "fifty-five million, nine hundred twenty-seven thousand, one hundred sixty-one".