55168823 has 4 divisors (see below), whose sum is σ = 55184928. Its totient is φ = 55152720.

The previous prime is 55168819. The next prime is 55168831. The reversal of 55168823 is 32886155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55168823 - 2² = 55168819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55168843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (13796232).

Almost surely, 2^55168823 is an apocalyptic number.

55168823 is a deficient number, since it is larger than the sum of its proper divisors (16105).

55168823 is a wasteful number, since it uses less digits than its factorization.

55168823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16104.

The product of its digits is 57600, while the sum is 38.

The square root of 55168823 is about 7427.5718104910. The cubic root of 55168823 is about 380.6839552033.

The spelling of 55168823 in words is "fifty-five million, one hundred sixty-eight thousand, eight hundred twenty-three".