55669824 has 84 divisors (see below), whose sum is σ = 182376064. Its totient is φ = 15904512.

The previous prime is 55669811. The next prime is 55669847. The reversal of 55669824 is 42896655.

55669824 is a `hidden beast` number, since 5 + 566 + 9 + 82 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a self number, because there is not a number n which added to its sum of digits gives 55669824.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2872 + ... + 10935.

Almost surely, 2^55669824 is an apocalyptic number.

It is an amenable number.

55669824 is an abundant number, since it is smaller than the sum of its proper divisors (126706240).

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

55669824 is a wasteful number, since it uses less digits than its factorization.

55669824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832 (or 13819 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 55669824 is about 7461.2213477419. The cubic root of 55669824 is about 381.8328444586.

The spelling of 55669824 in words is "fifty-five million, six hundred sixty-nine thousand, eight hundred twenty-four".