55626224 has 20 divisors (see below), whose sum is σ = 113448840. Its totient is φ = 26349120.

The previous prime is 55626163. The next prime is 55626229. The reversal of 55626224 is 42262655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55626229) 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, 91187 + ... + 91794.

It is an arithmetic number, because the mean of its divisors is an integer number (5672442).

Almost surely, 2^55626224 is an apocalyptic number.

It is an amenable number.

55626224 is an abundant number, since it is smaller than the sum of its proper divisors (57822616).

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

55626224 is a wasteful number, since it uses less digits than its factorization.

55626224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183008 (or 183002 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 55626224 is about 7458.2990017832. The cubic root of 55626224 is about 381.7331359818.

Adding to 55626224 its reverse (42262655), we get a palindrome (97888879).

The spelling of 55626224 in words is "fifty-five million, six hundred twenty-six thousand, two hundred twenty-four".