55438824 has 32 divisors (see below), whose sum is σ = 158397120. Its totient is φ = 15839616.

The previous prime is 55438811. The next prime is 55438841. The reversal of 55438824 is 42883455.

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, 164829 + ... + 165164.

It is an arithmetic number, because the mean of its divisors is an integer number (4949910).

Almost surely, 2^55438824 is an apocalyptic number.

It is an amenable number.

55438824 is an abundant number, since it is smaller than the sum of its proper divisors (102958296).

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

55438824 is a wasteful number, since it uses less digits than its factorization.

55438824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330009 (or 330005 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 55438824 is about 7445.7252165253. The cubic root of 55438824 is about 381.3039782392.

The spelling of 55438824 in words is "fifty-five million, four hundred thirty-eight thousand, eight hundred twenty-four".