55624938 has 8 divisors (see below), whose sum is σ = 111249888. Its totient is φ = 18541644.

The previous prime is 55624909. The next prime is 55624939. The reversal of 55624938 is 83942655.

It is a sphenic number, since it is the product of 3 distinct primes.

55624938 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55624938.

It is not an unprimeable number, because it can be changed into a prime (55624939) 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, 4635406 + ... + 4635417.

It is an arithmetic number, because the mean of its divisors is an integer number (13906236).

Almost surely, 2^55624938 is an apocalyptic number.

55624938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55624938 is a wasteful number, since it uses less digits than its factorization.

55624938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270828.

The product of its digits is 259200, while the sum is 42.

The square root of 55624938 is about 7458.2127885975. The cubic root of 55624938 is about 381.7301942482.

The spelling of 55624938 in words is "fifty-five million, six hundred twenty-four thousand, nine hundred thirty-eight".