252511245 has 48 divisors (see below), whose sum is σ = 505889280. Its totient is φ = 114124032.

The previous prime is 252511229. The next prime is 252511267. The reversal of 252511245 is 542115252.

It is not a de Polignac number, because 252511245 - 2⁴ = 252511229 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23532 + ... + 32538.

It is an arithmetic number, because the mean of its divisors is an integer number (10539360).

Almost surely, 2^252511245 is an apocalyptic number.

It is an amenable number.

252511245 is an abundant number, since it is smaller than the sum of its proper divisors (253378035).

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

252511245 is a wasteful number, since it uses less digits than its factorization.

252511245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114 (or 9111 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 252511245 is about 15890.6024114884. The cubic root of 252511245 is about 632.0628150525.

Adding to 252511245 its reverse (542115252), we get a palindrome (794626497).

The spelling of 252511245 in words is "two hundred fifty-two million, five hundred eleven thousand, two hundred forty-five".