252210205 has 8 divisors (see below), whose sum is σ = 325933272. Its totient is φ = 186247488.

The previous prime is 252210197. The next prime is 252210221. The reversal of 252210205 is 502012252.

It can be written as a sum of positive squares in 4 ways, for example, as 480249 + 251729956 = 693^2 + 15866^2 .

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 252210205 - 2³ = 252210197 is a prime.

It is a super-2 number, since 2×252210205² = 127219975012284050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 1940014 + ... + 1940143.

It is an arithmetic number, because the mean of its divisors is an integer number (40741659).

Almost surely, 2^252210205 is an apocalyptic number.

It is an amenable number.

252210205 is a deficient number, since it is larger than the sum of its proper divisors (73723067).

252210205 is a wasteful number, since it uses less digits than its factorization.

252210205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880175.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 252210205 is about 15881.1273214467. The cubic root of 252210205 is about 631.8115366659.

Adding to 252210205 its reverse (502012252), we get a palindrome (754222457).

The spelling of 252210205 in words is "two hundred fifty-two million, two hundred ten thousand, two hundred five".