55424664 has 48 divisors (see below), whose sum is σ = 156639600. Its totient is φ = 17671104.

The previous prime is 55424651. The next prime is 55424689. The reversal of 55424664 is 46642455.

55424664 is a `hidden beast` number, since 554 + 2 + 46 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 15079 + ... + 18390.

It is an arithmetic number, because the mean of its divisors is an integer number (3263325).

Almost surely, 2^55424664 is an apocalyptic number.

It is an amenable number.

55424664 is an abundant number, since it is smaller than the sum of its proper divisors (101214936).

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

55424664 is a wasteful number, since it uses less digits than its factorization.

55424664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33504 (or 33497 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 55424664 is about 7444.7742746171. The cubic root of 55424664 is about 381.2715116770.

The spelling of 55424664 in words is "fifty-five million, four hundred twenty-four thousand, six hundred sixty-four".