55065164 has 36 divisors (see below), whose sum is σ = 121059792. Its totient is φ = 21452640.

The previous prime is 55065137. The next prime is 55065169. The reversal of 55065164 is 46156055.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55065164.

It is not an unprimeable number, because it can be changed into a prime (55065169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4739 + ... + 11514.

It is an arithmetic number, because the mean of its divisors is an integer number (3362772).

Almost surely, 2^55065164 is an apocalyptic number.

It is an amenable number.

55065164 is an abundant number, since it is smaller than the sum of its proper divisors (65994628).

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

55065164 is a wasteful number, since it uses less digits than its factorization.

55065164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16286 (or 16273 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 55065164 is about 7420.5905425377. The cubic root of 55065164 is about 380.4453780688.

The spelling of 55065164 in words is "fifty-five million, sixty-five thousand, one hundred sixty-four".