285525585 has 24 divisors (see below), whose sum is σ = 497689920. Its totient is φ = 151425312.

The previous prime is 285525563. The next prime is 285525613. The reversal of 285525585 is 585525582.

It is not a de Polignac number, because 285525585 - 2⁵ = 285525553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 285525585.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9669 + ... + 25778.

It is an arithmetic number, because the mean of its divisors is an integer number (20737080).

Almost surely, 2^285525585 is an apocalyptic number.

It is an amenable number.

285525585 is a deficient number, since it is larger than the sum of its proper divisors (212164335).

285525585 is a wasteful number, since it uses less digits than its factorization.

285525585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35637 (or 35634 counting only the distinct ones).

The product of its digits is 800000, while the sum is 45.

The square root of 285525585 is about 16897.5023302262. The cubic root of 285525585 is about 658.4887253048.

The spelling of 285525585 in words is "two hundred eighty-five million, five hundred twenty-five thousand, five hundred eighty-five".