252865 has 8 divisors (see below), whose sum is σ = 307008. Its totient is φ = 199920.

The previous prime is 252829. The next prime is 252869. The reversal of 252865 is 568252.

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

It is not a de Polignac number, because 252865 - 2⁷ = 252737 is a prime.

It is a Duffinian number.

252865 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (252869) 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, 270 + ... + 760.

It is an arithmetic number, because the mean of its divisors is an integer number (38376).

2²⁵²⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

252865 is a deficient number, since it is larger than the sum of its proper divisors (54143).

252865 is a wasteful number, since it uses less digits than its factorization.

252865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

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

The square root of 252865 is about 502.8568384739. The cubic root of 252865 is about 63.2357839600.

The spelling of 252865 in words is "two hundred fifty-two thousand, eight hundred sixty-five".