252558 has 20 divisors (see below), whose sum is σ = 566280. Its totient is φ = 84132.

The previous prime is 252541. The next prime is 252559. The reversal of 252558 is 855252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252559) by changing a digit.

252558 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 (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 618 + ... + 941.

It is an arithmetic number, because the mean of its divisors is an integer number (28314).

2²⁵²⁵⁵⁸ is an apocalyptic number.

252558 is an abundant number, since it is smaller than the sum of its proper divisors (313722).

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

252558 is a wasteful number, since it uses less digits than its factorization.

252558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1564 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 252558 is about 502.5514898993. The cubic root of 252558 is about 63.2101823577.

The spelling of 252558 in words is "two hundred fifty-two thousand, five hundred fifty-eight".