52508280 has 64 divisors (see below), whose sum is σ = 171849600. Its totient is φ = 12728960.

The previous prime is 52508279. The next prime is 52508293. The reversal of 52508280 is 8280525.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18570 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (2685150).

Almost surely, 2^52508280 is an apocalyptic number.

It is an amenable number.

52508280 is an abundant number, since it is smaller than the sum of its proper divisors (119341320).

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

52508280 is a wasteful number, since it uses less digits than its factorization.

52508280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39804 (or 39800 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 52508280 is about 7246.2597248512. The cubic root of 52508280 is about 374.4633033621.

It can be divided in two parts, 5250 and 8280, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 52508280 in words is "fifty-two million, five hundred eight thousand, two hundred eighty".