52815306 has 16 divisors (see below), whose sum is σ = 106169184. Its totient is φ = 17515344.

The previous prime is 52815283. The next prime is 52815361. The reversal of 52815306 is 60351825.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21160 + ... + 23523.

It is an arithmetic number, because the mean of its divisors is an integer number (6635574).

Almost surely, 2^52815306 is an apocalyptic number.

52815306 is an abundant number, since it is smaller than the sum of its proper divisors (53353878).

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

52815306 is a wasteful number, since it uses less digits than its factorization.

52815306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44885.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 52815306 is about 7267.4139829791. The cubic root of 52815306 is about 375.1917383914.

The spelling of 52815306 in words is "fifty-two million, eight hundred fifteen thousand, three hundred six".