55597332 has 24 divisors (see below), whose sum is σ = 148259776. Its totient is φ = 15884928.

The previous prime is 55597313. The next prime is 55597343. The reversal of 55597332 is 23379555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330853 + ... + 331020.

Almost surely, 2^55597332 is an apocalyptic number.

It is an amenable number.

55597332 is an abundant number, since it is smaller than the sum of its proper divisors (92662444).

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

55597332 is a wasteful number, since it uses less digits than its factorization.

55597332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661887 (or 661885 counting only the distinct ones).

The product of its digits is 141750, while the sum is 39.

The square root of 55597332 is about 7456.3618474428. The cubic root of 55597332 is about 381.6670344023.

The spelling of 55597332 in words is "fifty-five million, five hundred ninety-seven thousand, three hundred thirty-two".