55339644 has 12 divisors (see below), whose sum is σ = 129125864. Its totient is φ = 18446544.

The previous prime is 55339637. The next prime is 55339657. The reversal of 55339644 is 44693355.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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, 2305807 + ... + 2305830.

Almost surely, 2^55339644 is an apocalyptic number.

It is an amenable number.

55339644 is an abundant number, since it is smaller than the sum of its proper divisors (73786220).

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

55339644 is a wasteful number, since it uses less digits than its factorization.

55339644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611644 (or 4611642 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The square root of 55339644 is about 7439.0620376496. The cubic root of 55339644 is about 381.0764583640.

The spelling of 55339644 in words is "fifty-five million, three hundred thirty-nine thousand, six hundred forty-four".