252985 has 8 divisors (see below), whose sum is σ = 319680. Its totient is φ = 191664.

The previous prime is 252983. The next prime is 253003. The reversal of 252985 is 589252.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 252985 - 2¹ = 252983 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (252983) by changing a digit.

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, 1237 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2²⁵²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

252985 is a deficient number, since it is larger than the sum of its proper divisors (66695).

252985 is a wasteful number, since it uses less digits than its factorization.

252985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687.

The product of its digits is 7200, while the sum is 31.

The square root of 252985 is about 502.9761425754. The cubic root of 252985 is about 63.2457854681.

The spelling of 252985 in words is "two hundred fifty-two thousand, nine hundred eighty-five".