252707705 has 4 divisors (see below), whose sum is σ = 303249252. Its totient is φ = 202166160.

The previous prime is 252707687. The next prime is 252707713. The reversal of 252707705 is 507707252.

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 194993296 + 57714409 = 13964^2 + 7597^2 .

It is not a de Polignac number, because 252707705 - 2¹² = 252703609 is a prime.

It is a super-2 number, since 2×252707705² = 127722368332734050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon 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, 25270766 + ... + 25270775.

It is an arithmetic number, because the mean of its divisors is an integer number (75812313).

Almost surely, 2^252707705 is an apocalyptic number.

It is an amenable number.

252707705 is a deficient number, since it is larger than the sum of its proper divisors (50541547).

252707705 is an equidigital number, since it uses as much as digits as its factorization.

252707705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50541546.

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 252707705 is about 15896.7828506274. The cubic root of 252707705 is about 632.2266927323.

The spelling of 252707705 in words is "two hundred fifty-two million, seven hundred seven thousand, seven hundred five".