53478528 has 32 divisors (see below), whose sum is σ = 142053360. Its totient is φ = 17826048.

The previous prime is 53478511. The next prime is 53478539. The reversal of 53478528 is 82587435.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53478528.

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, 69250 + ... + 70017.

Almost surely, 2^53478528 is an apocalyptic number.

It is an amenable number.

53478528 is an abundant number, since it is smaller than the sum of its proper divisors (88574832).

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

53478528 is a wasteful number, since it uses less digits than its factorization.

53478528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139284 (or 139272 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 53478528 is about 7312.9014761584. The cubic root of 53478528 is about 376.7556855761.

The spelling of 53478528 in words is "fifty-three million, four hundred seventy-eight thousand, five hundred twenty-eight".