53503872 has 32 divisors (see below), whose sum is σ = 142120680. Its totient is φ = 17834496.

The previous prime is 53503859. The next prime is 53503889. The reversal of 53503872 is 27830535.

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

It is a zygodrome in base 2.

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, 69283 + ... + 70050.

Almost surely, 2^53503872 is an apocalyptic number.

It is an amenable number.

53503872 is an abundant number, since it is smaller than the sum of its proper divisors (88616808).

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

53503872 is a wasteful number, since it uses less digits than its factorization.

53503872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139350 (or 139338 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53503872 is about 7314.6340988460. The cubic root of 53503872 is about 376.8151922508.

The spelling of 53503872 in words is "fifty-three million, five hundred three thousand, eight hundred seventy-two".