252257524 has 6 divisors (see below), whose sum is σ = 441450674. Its totient is φ = 126128760.

The previous prime is 252257503. The next prime is 252257531. The reversal of 252257524 is 425752252.

It can be written as a sum of positive squares in only one way, i.e., 252237924 + 19600 = 15882^2 + 140^2 .

It is a super-2 number, since 2×252257524² = 127267716829221152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252257524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31532187 + ... + 31532194.

Almost surely, 2^252257524 is an apocalyptic number.

It is an amenable number.

252257524 is a deficient number, since it is larger than the sum of its proper divisors (189193150).

252257524 is a wasteful number, since it uses less digits than its factorization.

252257524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63064385 (or 63064383 counting only the distinct ones).

The product of its digits is 56000, while the sum is 34.

The square root of 252257524 is about 15882.6170387628. The cubic root of 252257524 is about 631.8510471219.

The spelling of 252257524 in words is "two hundred fifty-two million, two hundred fifty-seven thousand, five hundred twenty-four".