252185284 has 24 divisors (see below), whose sum is σ = 479987928. Its totient is φ = 115238400.

The previous prime is 252185267. The next prime is 252185299. The reversal of 252185284 is 482581252.

It can be written as a sum of positive squares in 4 ways, for example, as 23328900 + 228856384 = 4830^2 + 15128^2 .

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, 18757 + ... + 29260.

It is an arithmetic number, because the mean of its divisors is an integer number (19999497).

Almost surely, 2^252185284 is an apocalyptic number.

It is an amenable number.

252185284 is a deficient number, since it is larger than the sum of its proper divisors (227802644).

252185284 is a wasteful number, since it uses less digits than its factorization.

252185284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48135 (or 48133 counting only the distinct ones).

The product of its digits is 51200, while the sum is 37.

The square root of 252185284 is about 15880.3426915165. The cubic root of 252185284 is about 631.7907261229.

The spelling of 252185284 in words is "two hundred fifty-two million, one hundred eighty-five thousand, two hundred eighty-four".