252638875263 has 8 divisors (see below), whose sum is σ = 337450151808. Its totient is φ = 168126757784.

The previous prime is 252638875213. The next prime is 252638875273. The reversal of 252638875263 is 362578836252.

It is a happy number.

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

It is not a de Polignac number, because 252638875263 - 2¹⁰ = 252638874239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252638875213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74787795 + ... + 74791172.

It is an arithmetic number, because the mean of its divisors is an integer number (42181268976).

Almost surely, 2^252638875263 is an apocalyptic number.

252638875263 is a deficient number, since it is larger than the sum of its proper divisors (84811276545).

252638875263 is a wasteful number, since it uses less digits than its factorization.

252638875263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149579533.

The product of its digits is 29030400, while the sum is 57.

The spelling of 252638875263 in words is "two hundred fifty-two billion, six hundred thirty-eight million, eight hundred seventy-five thousand, two hundred sixty-three".