252215252 has 12 divisors (see below), whose sum is σ = 441556500. Its totient is φ = 126056256.

The previous prime is 252215251. The next prime is 252215261. The reversal of 252215252 is 252512252.

It can be written as a sum of positive squares in 2 ways, for example, as 44970436 + 207244816 = 6706^2 + 14396^2 .

It is a super-2 number, since 2×252215252² = 127225066682847008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252215251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473 + ... + 22464.

It is an arithmetic number, because the mean of its divisors is an integer number (36796375).

Almost surely, 2^252215252 is an apocalyptic number.

It is an amenable number.

252215252 is a deficient number, since it is larger than the sum of its proper divisors (189341248).

252215252 is a wasteful number, since it uses less digits than its factorization.

252215252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25690 (or 25688 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 252215252 is about 15881.2862199508. The cubic root of 252215252 is about 631.8157510494.

The spelling of 252215252 in words is "two hundred fifty-two million, two hundred fifteen thousand, two hundred fifty-two".