285252875 has 8 divisors (see below), whose sum is σ = 355995744. Its totient is φ = 228202200.

The previous prime is 285252859. The next prime is 285252883. The reversal of 285252875 is 578252582.

It is not a de Polignac number, because 285252875 - 2⁴ = 285252859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140887 + ... + 1141136.

It is an arithmetic number, because the mean of its divisors is an integer number (44499468).

Almost surely, 2^285252875 is an apocalyptic number.

285252875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

285252875 is a deficient number, since it is larger than the sum of its proper divisors (70742869).

285252875 is an equidigital number, since it uses as much as digits as its factorization.

285252875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282038 (or 2282028 counting only the distinct ones).

The product of its digits is 448000, while the sum is 44.

The square root of 285252875 is about 16889.4308666692. The cubic root of 285252875 is about 658.2790141940.

The spelling of 285252875 in words is "two hundred eighty-five million, two hundred fifty-two thousand, eight hundred seventy-five".