252218 has 8 divisors (see below), whose sum is σ = 394848. Its totient is φ = 120604.

The previous prime is 252209. The next prime is 252223. The reversal of 252218 is 812252.

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

It is a super-2 number, since 2×252218² = 127227839048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252218.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 252218.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 2696 + ... + 2787.

It is an arithmetic number, because the mean of its divisors is an integer number (49356).

2²⁵²²¹⁸ is an apocalyptic number.

252218 is a deficient number, since it is larger than the sum of its proper divisors (142630).

252218 is a wasteful number, since it uses less digits than its factorization.

252218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508.

The product of its digits is 320, while the sum is 20.

The square root of 252218 is about 502.2131021787. The cubic root of 252218 is about 63.1818045681.

The spelling of 252218 in words is "two hundred fifty-two thousand, two hundred eighteen".