252605 has 8 divisors (see below), whose sum is σ = 319200. Its totient is φ = 191376.

The previous prime is 252589. The next prime is 252607. The reversal of 252605 is 506252.

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 252605 - 2⁴ = 252589 is a prime.

It is a congruent number.

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

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 7 ways as a sum of consecutive naturals, for example, 1235 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (39900).

2²⁵²⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

252605 is a deficient number, since it is larger than the sum of its proper divisors (66595).

252605 is a wasteful number, since it uses less digits than its factorization.

252605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 252605 is about 502.5982491016. The cubic root of 252605 is about 63.2141031657.

Adding to 252605 its reverse (506252), we get a palindrome (758857).

The spelling of 252605 in words is "two hundred fifty-two thousand, six hundred five".