52506816 has 28 divisors (see below), whose sum is σ = 138924792. Its totient is φ = 17502208.

The previous prime is 52506809. The next prime is 52506821. The reversal of 52506816 is 61860525.

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, 136545 + ... + 136928.

Almost surely, 2^52506816 is an apocalyptic number.

It is an amenable number.

52506816 is an abundant number, since it is smaller than the sum of its proper divisors (86417976).

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

52506816 is a wasteful number, since it uses less digits than its factorization.

52506816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273488 (or 273478 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 52506816 is about 7246.1587065148. The cubic root of 52506816 is about 374.4598231531.

The spelling of 52506816 in words is "fifty-two million, five hundred six thousand, eight hundred sixteen".