55449424 has 20 divisors (see below), whose sum is σ = 107689536. Its totient is φ = 27658592.

The previous prime is 55449397. The next prime is 55449431. The reversal of 55449424 is 42494455.

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, 3177 + ... + 10999.

Almost surely, 2^55449424 is an apocalyptic number.

It is an amenable number.

55449424 is a deficient number, since it is larger than the sum of its proper divisors (52240112).

55449424 is a wasteful number, since it uses less digits than its factorization.

55449424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8274 (or 8268 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 55449424 is about 7446.4370003378. The cubic root of 55449424 is about 381.3282786861.

The spelling of 55449424 in words is "fifty-five million, four hundred forty-nine thousand, four hundred twenty-four".