55384172 has 12 divisors (see below), whose sum is σ = 99176616. Its totient is φ = 27048000.

The previous prime is 55384169. The next prime is 55384177. The reversal of 55384172 is 27148355.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55384177) 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, 160829 + ... + 161172.

It is an arithmetic number, because the mean of its divisors is an integer number (8264718).

Almost surely, 2^55384172 is an apocalyptic number.

It is an amenable number.

55384172 is a deficient number, since it is larger than the sum of its proper divisors (43792444).

55384172 is a wasteful number, since it uses less digits than its factorization.

55384172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322048 (or 322046 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 55384172 is about 7442.0542862841. The cubic root of 55384172 is about 381.1786396226.

The spelling of 55384172 in words is "fifty-five million, three hundred eighty-four thousand, one hundred seventy-two".