55683684 has 72 divisors (see below), whose sum is σ = 162052800. Its totient is φ = 15792192.

The previous prime is 55683671. The next prime is 55683701. The reversal of 55683684 is 48638655.

55683684 is a `hidden beast` number, since 5 + 568 + 3 + 6 + 84 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36807 + ... + 38289.

Almost surely, 2^55683684 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 55683684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81026400).

55683684 is an abundant number, since it is smaller than the sum of its proper divisors (106369116).

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

55683684 is a wasteful number, since it uses less digits than its factorization.

55683684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1644 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 55683684 is about 7462.1500922991. The cubic root of 55683684 is about 381.8645298715.

The spelling of 55683684 in words is "fifty-five million, six hundred eighty-three thousand, six hundred eighty-four".