252765253 has 4 divisors (see below), whose sum is σ = 272208748. Its totient is φ = 233321760.

The previous prime is 252765221. The next prime is 252765259. The reversal of 252765253 is 352567252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146942884 + 105822369 = 12122^2 + 10287^2 .

It is a cyclic number.

It is not a de Polignac number, because 252765253 - 2⁵ = 252765221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252765259) 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, 9721728 + ... + 9721753.

It is an arithmetic number, because the mean of its divisors is an integer number (68052187).

Almost surely, 2^252765253 is an apocalyptic number.

It is an amenable number.

252765253 is a deficient number, since it is larger than the sum of its proper divisors (19443495).

252765253 is a wasteful number, since it uses less digits than its factorization.

252765253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19443494.

The product of its digits is 126000, while the sum is 37.

The square root of 252765253 is about 15898.5927993644. The cubic root of 252765253 is about 632.2746804793.

The spelling of 252765253 in words is "two hundred fifty-two million, seven hundred sixty-five thousand, two hundred fifty-three".