252606 has 8 divisors (see below), whose sum is σ = 505224. Its totient is φ = 84200.

The previous prime is 252589. The next prime is 252607. The reversal of 252606 is 606252.

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

252606 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252607) by changing a digit.

252606 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21045 + ... + 21056.

It is an arithmetic number, because the mean of its divisors is an integer number (63153).

2²⁵²⁶⁰⁶ is an apocalyptic number.

252606 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252606 is a wasteful number, since it uses less digits than its factorization.

252606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42106.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 252606 is about 502.5992439310. The cubic root of 252606 is about 63.2141865819.

Adding to 252606 its reverse (606252), we get a palindrome (858858).

It can be divided in two parts, 252 and 606, that added together give a palindrome (858).

The spelling of 252606 in words is "two hundred fifty-two thousand, six hundred six".