55164051 has 32 divisors (see below), whose sum is σ = 85885440. Its totient is φ = 34927200.

The previous prime is 55164029. The next prime is 55164071. The reversal of 55164051 is 15046155.

It is a happy number.

55164051 is a `hidden beast` number, since 551 + 64 + 0 + 51 = 666.

It is not a de Polignac number, because 55164051 - 2⁷ = 55163923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55164071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130821 + ... + 131241.

It is an arithmetic number, because the mean of its divisors is an integer number (2683920).

Almost surely, 2^55164051 is an apocalyptic number.

55164051 is a deficient number, since it is larger than the sum of its proper divisors (30721389).

55164051 is a wasteful number, since it uses less digits than its factorization.

55164051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 55164051 is about 7427.2505680097. The cubic root of 55164051 is about 380.6729787368.

The spelling of 55164051 in words is "fifty-five million, one hundred sixty-four thousand, fifty-one".