55320368 has 20 divisors (see below), whose sum is σ = 110641728. Its totient is φ = 26767680.

The previous prime is 55320341. The next prime is 55320379. The reversal of 55320368 is 86302355.

55320368 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55271 + ... + 56262.

Almost surely, 2^55320368 is an apocalyptic number.

It is an amenable number.

55320368 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.

55320368 is a wasteful number, since it uses less digits than its factorization.

55320368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111572 (or 111566 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 55320368 is about 7437.7663313659. The cubic root of 55320368 is about 381.0322074899.

The spelling of 55320368 in words is "fifty-five million, three hundred twenty thousand, three hundred sixty-eight".