252685 has 8 divisors (see below), whose sum is σ = 306936. Its totient is φ = 199680.

The previous prime is 252667. The next prime is 252691. The reversal of 252685 is 586252.

It can be written as a sum of positive squares in 4 ways, for example, as 8649 + 244036 = 93^2 + 494^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252685 - 2⁹ = 252173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 745.

It is an arithmetic number, because the mean of its divisors is an integer number (38367).

2²⁵²⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

252685 is a deficient number, since it is larger than the sum of its proper divisors (54251).

252685 is an equidigital number, since it uses as much as digits as its factorization.

252685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its digits is 4800, while the sum is 28.

The square root of 252685 is about 502.6778292306. The cubic root of 252685 is about 63.2207757632.

The spelling of 252685 in words is "two hundred fifty-two thousand, six hundred eighty-five".