252344554565 has 4 divisors (see below), whose sum is σ = 302813465484. Its totient is φ = 201875643648.

The previous prime is 252344554547. The next prime is 252344554573. The reversal of 252344554565 is 565455443252.

It is a happy number.

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 179184583204 + 73159971361 = 423302^2 + 270481^2 .

It is a cyclic number.

It is not a de Polignac number, because 252344554565 - 2²⁰ = 252343505989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25234455452 + ... + 25234455461.

It is an arithmetic number, because the mean of its divisors is an integer number (75703366371).

Almost surely, 2^252344554565 is an apocalyptic number.

It is an amenable number.

252344554565 is a deficient number, since it is larger than the sum of its proper divisors (50468910919).

252344554565 is an equidigital number, since it uses as much as digits as its factorization.

252344554565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50468910918.

The product of its digits is 14400000, while the sum is 50.

The spelling of 252344554565 in words is "two hundred fifty-two billion, three hundred forty-four million, five hundred fifty-four thousand, five hundred sixty-five".