55638192 has 40 divisors (see below), whose sum is σ = 144879616. Its totient is φ = 18398016.

The previous prime is 55638169. The next prime is 55638203. The reversal of 55638192 is 29183655.

It is a self number, because there is not a number n which added to its sum of digits gives 55638192.

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, 1533 + ... + 10659.

Almost surely, 2^55638192 is an apocalyptic number.

It is an amenable number.

55638192 is an abundant number, since it is smaller than the sum of its proper divisors (89241424).

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

55638192 is a wasteful number, since it uses less digits than its factorization.

55638192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265 (or 9259 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 55638192 is about 7459.1012863481. The cubic root of 55638192 is about 381.7605106877.

The spelling of 55638192 in words is "fifty-five million, six hundred thirty-eight thousand, one hundred ninety-two".