285025285 has 32 divisors (see below), whose sum is σ = 360138240. Its totient is φ = 216373248.

The previous prime is 285025277. The next prime is 285025337. The reversal of 285025285 is 582520582.

It is not a de Polignac number, because 285025285 - 2³ = 285025277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1647459 + ... + 1647631.

It is an arithmetic number, because the mean of its divisors is an integer number (11254320).

Almost surely, 2^285025285 is an apocalyptic number.

It is an amenable number.

285025285 is a deficient number, since it is larger than the sum of its proper divisors (75112955).

285025285 is a wasteful number, since it uses less digits than its factorization.

285025285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397.

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 285025285 is about 16882.6918765936. The cubic root of 285025285 is about 658.1038975451.

The spelling of 285025285 in words is "two hundred eighty-five million, twenty-five thousand, two hundred eighty-five".