285028625 has 16 divisors (see below), whose sum is σ = 406533504. Its totient is φ = 195447600.

The previous prime is 285028609. The next prime is 285028669. The reversal of 285028625 is 526820582.

It is a happy number.

It is not a de Polignac number, because 285028625 - 2⁴ = 285028609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161999 + ... + 163748.

It is an arithmetic number, because the mean of its divisors is an integer number (25408344).

Almost surely, 2^285028625 is an apocalyptic number.

285028625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285028625 is a deficient number, since it is larger than the sum of its proper divisors (121504879).

285028625 is an equidigital number, since it uses as much as digits as its factorization.

285028625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325769 (or 325759 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 285028625 is about 16882.7907941786. The cubic root of 285028625 is about 658.1064681456.

The spelling of 285028625 in words is "two hundred eighty-five million, twenty-eight thousand, six hundred twenty-five".