252818585 has 4 divisors (see below), whose sum is σ = 303382308. Its totient is φ = 202254864.

The previous prime is 252818563. The next prime is 252818591. The reversal of 252818585 is 585818252.

252818585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 171295744 + 81522841 = 13088^2 + 9029^2 .

It is a cyclic number.

It is not a de Polignac number, because 252818585 - 2⁸ = 252818329 is a prime.

It is a Duffinian 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, 25281854 + ... + 25281863.

It is an arithmetic number, because the mean of its divisors is an integer number (75845577).

Almost surely, 2^252818585 is an apocalyptic number.

It is an amenable number.

252818585 is a deficient number, since it is larger than the sum of its proper divisors (50563723).

252818585 is an equidigital number, since it uses as much as digits as its factorization.

252818585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50563722.

The product of its digits is 256000, while the sum is 44.

The square root of 252818585 is about 15900.2699662616. The cubic root of 252818585 is about 632.3191461136.

The spelling of 252818585 in words is "two hundred fifty-two million, eight hundred eighteen thousand, five hundred eighty-five".