55183223 has 4 divisors (see below), whose sum is σ = 56087928. Its totient is φ = 54278520.

The previous prime is 55183213. The next prime is 55183237. The reversal of 55183223 is 32238155.

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 55183223 - 2¹⁰ = 55182199 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 (55183213) 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, 452261 + ... + 452382.

It is an arithmetic number, because the mean of its divisors is an integer number (14021982).

Almost surely, 2^55183223 is an apocalyptic number.

55183223 is a deficient number, since it is larger than the sum of its proper divisors (904705).

55183223 is an equidigital number, since it uses as much as digits as its factorization.

55183223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904704.

The product of its digits is 7200, while the sum is 29.

The square root of 55183223 is about 7428.5411084546. The cubic root of 55183223 is about 380.7170739817.

The spelling of 55183223 in words is "fifty-five million, one hundred eighty-three thousand, two hundred twenty-three".