252706 has 8 divisors (see below), whose sum is σ = 392220. Its totient is φ = 121968.

The previous prime is 252691. The next prime is 252709. The reversal of 252706 is 607252.

It can be written as a sum of positive squares in 2 ways, for example, as 216225 + 36481 = 465^2 + 191^2 .

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

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (252709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121 + ... + 2236.

2²⁵²⁷⁰⁶ is an apocalyptic number.

252706 is a deficient number, since it is larger than the sum of its proper divisors (139514).

252706 is a wasteful number, since it uses less digits than its factorization.

252706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 252706 is about 502.6987169269. The cubic root of 252706 is about 63.2225270867. Note that the first 3 decimals are identical.

Adding to 252706 its reverse (607252), we get a palindrome (859958).

The spelling of 252706 in words is "two hundred fifty-two thousand, seven hundred six".