55595320 has 64 divisors (see below), whose sum is σ = 141199200. Its totient is φ = 19514880.

The previous prime is 55595317. The next prime is 55595329. The reversal of 55595320 is 2359555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55595329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10582 + ... + 14938.

Almost surely, 2^55595320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55595320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70599600).

55595320 is an abundant number, since it is smaller than the sum of its proper divisors (85603880).

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

55595320 is a wasteful number, since it uses less digits than its factorization.

55595320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408 (or 4404 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 34.

The square root of 55595320 is about 7456.2269278771. The cubic root of 55595320 is about 381.6624303245.

The spelling of 55595320 in words is "fifty-five million, five hundred ninety-five thousand, three hundred twenty".