53994624 has 32 divisors (see below), whose sum is σ = 143424240. Its totient is φ = 17998080.

The previous prime is 53994623. The next prime is 53994631. The reversal of 53994624 is 42649935.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (53994623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69922 + ... + 70689.

Almost surely, 2^53994624 is an apocalyptic number.

It is an amenable number.

53994624 is an abundant number, since it is smaller than the sum of its proper divisors (89429616).

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

53994624 is a wasteful number, since it uses less digits than its factorization.

53994624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140628 (or 140616 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 53994624 is about 7348.1034287767. The cubic root of 53994624 is about 377.9637713382.

The spelling of 53994624 in words is "fifty-three million, nine hundred ninety-four thousand, six hundred twenty-four".