252871663 has 4 divisors (see below), whose sum is σ = 275860008. Its totient is φ = 229883320.

The previous prime is 252871643. The next prime is 252871673. The reversal of 252871663 is 366178252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252871663 - 2⁵ = 252871631 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252871603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11494156 + ... + 11494177.

It is an arithmetic number, because the mean of its divisors is an integer number (68965002).

Almost surely, 2^252871663 is an apocalyptic number.

252871663 is a deficient number, since it is larger than the sum of its proper divisors (22988345).

252871663 is a wasteful number, since it uses less digits than its factorization.

252871663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22988344.

The product of its digits is 120960, while the sum is 40.

The square root of 252871663 is about 15901.9389698238. The cubic root of 252871663 is about 632.3633937668.

The spelling of 252871663 in words is "two hundred fifty-two million, eight hundred seventy-one thousand, six hundred sixty-three".