55321596 has 48 divisors (see below), whose sum is σ = 156468480. Its totient is φ = 16763760.

The previous prime is 55321579. The next prime is 55321627. The reversal of 55321596 is 69512355.

55321596 is a `hidden beast` number, since 553 + 2 + 15 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55321596.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22096 + ... + 24471.

It is an arithmetic number, because the mean of its divisors is an integer number (3259760).

Almost surely, 2^55321596 is an apocalyptic number.

It is an amenable number.

55321596 is an abundant number, since it is smaller than the sum of its proper divisors (101146884).

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

55321596 is a wasteful number, since it uses less digits than its factorization.

55321596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46591 (or 46583 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 55321596 is about 7437.8488825735. The cubic root of 55321596 is about 381.0350268498.

The spelling of 55321596 in words is "fifty-five million, three hundred twenty-one thousand, five hundred ninety-six".