252985763 has 8 divisors (see below), whose sum is σ = 273088800. Its totient is φ = 233641408.

The previous prime is 252985757. The next prime is 252985781. The reversal of 252985763 is 367589252.

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 252985763 - 2²⁰ = 251937187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252985753) 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, 188978 + ... + 190311.

It is an arithmetic number, because the mean of its divisors is an integer number (34136100).

Almost surely, 2^252985763 is an apocalyptic number.

252985763 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

252985763 is a deficient number, since it is larger than the sum of its proper divisors (20103037).

252985763 is a wasteful number, since it uses less digits than its factorization.

252985763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379341.

The product of its digits is 907200, while the sum is 47.

The square root of 252985763 is about 15905.5261780301. The cubic root of 252985763 is about 632.4584905086.

The spelling of 252985763 in words is "two hundred fifty-two million, nine hundred eighty-five thousand, seven hundred sixty-three".