252861 has 8 divisors (see below), whose sum is σ = 385344. Its totient is φ = 144480.

The previous prime is 252829. The next prime is 252869. The reversal of 252861 is 168252.

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

It is not a de Polignac number, because 252861 - 2⁵ = 252829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6000 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (48168).

2²⁵²⁸⁶¹ is an apocalyptic number.

252861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

252861 is a deficient number, since it is larger than the sum of its proper divisors (132483).

252861 is a wasteful number, since it uses less digits than its factorization.

252861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051.

The product of its digits is 960, while the sum is 24.

The square root of 252861 is about 502.8528611831. The cubic root of 252861 is about 63.2354505219.

The spelling of 252861 in words is "two hundred fifty-two thousand, eight hundred sixty-one".