252660243 has 16 divisors (see below), whose sum is σ = 373737600. Its totient is φ = 150530880.

The previous prime is 252660241. The next prime is 252660301. The reversal of 252660243 is 342066252.

252660243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252660243 - 2¹ = 252660241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252660243.

It is not an unprimeable number, because it can be changed into a prime (252660241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62938 + ... + 66831.

It is an arithmetic number, because the mean of its divisors is an integer number (23358600).

Almost surely, 2^252660243 is an apocalyptic number.

252660243 is a deficient number, since it is larger than the sum of its proper divisors (121077357).

252660243 is a wasteful number, since it uses less digits than its factorization.

252660243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129842.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 252660243 is about 15895.2899627531. The cubic root of 252660243 is about 632.1871099502.

The spelling of 252660243 in words is "two hundred fifty-two million, six hundred sixty thousand, two hundred forty-three".