52815372 has 12 divisors (see below), whose sum is σ = 123235896. Its totient is φ = 17605120.

The previous prime is 52815361. The next prime is 52815403. The reversal of 52815372 is 27351825.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2200629 + ... + 2200652.

It is an arithmetic number, because the mean of its divisors is an integer number (10269658).

Almost surely, 2^52815372 is an apocalyptic number.

It is an amenable number.

52815372 is an abundant number, since it is smaller than the sum of its proper divisors (70420524).

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

52815372 is a wasteful number, since it uses less digits than its factorization.

52815372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401288 (or 4401286 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 52815372 is about 7267.4185237951. The cubic root of 52815372 is about 375.1918946760.

The spelling of 52815372 in words is "fifty-two million, eight hundred fifteen thousand, three hundred seventy-two".