252679705 has 4 divisors (see below), whose sum is σ = 303215652. Its totient is φ = 202143760.

The previous prime is 252679657. The next prime is 252679709. The reversal of 252679705 is 507976252.

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 141229456 + 111450249 = 11884^2 + 10557^2 .

It is not a de Polignac number, because 252679705 - 2¹³ = 252671513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252679709) 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, 25267966 + ... + 25267975.

It is an arithmetic number, because the mean of its divisors is an integer number (75803913).

Almost surely, 2^252679705 is an apocalyptic number.

It is an amenable number.

252679705 is a deficient number, since it is larger than the sum of its proper divisors (50535947).

252679705 is an equidigital number, since it uses as much as digits as its factorization.

252679705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50535946.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 252679705 is about 15895.9021448926. The cubic root of 252679705 is about 632.2033416421.

The spelling of 252679705 in words is "two hundred fifty-two million, six hundred seventy-nine thousand, seven hundred five".