55091164 has 12 divisors (see below), whose sum is σ = 100601424. Its totient is φ = 26347904.

The previous prime is 55091159. The next prime is 55091171. The reversal of 55091164 is 46119055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299317 + ... + 299500.

It is an arithmetic number, because the mean of its divisors is an integer number (8383452).

Almost surely, 2^55091164 is an apocalyptic number.

It is an amenable number.

55091164 is a deficient number, since it is larger than the sum of its proper divisors (45510260).

55091164 is a wasteful number, since it uses less digits than its factorization.

55091164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598844 (or 598842 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 55091164 is about 7422.3422179256. The cubic root of 55091164 is about 380.5052466723.

It can be divided in two parts, 55091 and 164, that added together give a palindrome (55255).

The spelling of 55091164 in words is "fifty-five million, ninety-one thousand, one hundred sixty-four".