55318446 has 24 divisors (see below), whose sum is σ = 123724224. Its totient is φ = 17844480.

The previous prime is 55318433. The next prime is 55318469. The reversal of 55318446 is 64481355.

It is a happy number.

55318446 is a `hidden beast` number, since 5 + 531 + 84 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 55318446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49011 + ... + 50126.

It is an arithmetic number, because the mean of its divisors is an integer number (5155176).

Almost surely, 2^55318446 is an apocalyptic number.

55318446 is an abundant number, since it is smaller than the sum of its proper divisors (68405778).

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

55318446 is a wasteful number, since it uses less digits than its factorization.

55318446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99176 (or 99173 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 55318446 is about 7437.6371247863. The cubic root of 55318446 is about 381.0277946945.

The spelling of 55318446 in words is "fifty-five million, three hundred eighteen thousand, four hundred forty-six".