55164923 has 16 divisors (see below), whose sum is σ = 64400640. Its totient is φ = 46720800.

The previous prime is 55164917. The next prime is 55164929. The reversal of 55164923 is 32946155.

It is an interprime number because it is at equal distance from previous prime (55164917) and next prime (55164929).

It is a cyclic number.

It is not a de Polignac number, because 55164923 - 2⁸ = 55164667 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55164929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10586 + ... + 14912.

It is an arithmetic number, because the mean of its divisors is an integer number (4025040).

Almost surely, 2^55164923 is an apocalyptic number.

55164923 is a deficient number, since it is larger than the sum of its proper divisors (9235717).

55164923 is a wasteful number, since it uses less digits than its factorization.

55164923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418.

The product of its digits is 32400, while the sum is 35.

The square root of 55164923 is about 7427.3092705232. The cubic root of 55164923 is about 380.6749845424.

The spelling of 55164923 in words is "fifty-five million, one hundred sixty-four thousand, nine hundred twenty-three".