285000275 has 24 divisors (see below), whose sum is σ = 404631840. Its totient is φ = 195068160.

The previous prime is 285000253. The next prime is 285000277. The reversal of 285000275 is 572000582.

It is not a de Polignac number, because 285000275 - 2¹⁰ = 284999251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285000277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122927 + ... + 125223.

It is an arithmetic number, because the mean of its divisors is an integer number (16859660).

Almost surely, 2^285000275 is an apocalyptic number.

285000275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

285000275 is a deficient number, since it is larger than the sum of its proper divisors (119631565).

285000275 is a wasteful number, since it uses less digits than its factorization.

285000275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 285000275 is about 16881.9511609292. The cubic root of 285000275 is about 658.0846481887.

The spelling of 285000275 in words is "two hundred eighty-five million, two hundred seventy-five", and thus it is an aban number.