285822625 has 32 divisors (see below), whose sum is σ = 393329664. Its totient is φ = 205632000.

The previous prime is 285822617. The next prime is 285822659. The reversal of 285822625 is 526228582.

It is a happy number.

It is not a de Polignac number, because 285822625 - 2³ = 285822617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132304 + ... + 134446.

It is an arithmetic number, because the mean of its divisors is an integer number (12291552).

Almost surely, 2^285822625 is an apocalyptic number.

285822625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285822625 is a deficient number, since it is larger than the sum of its proper divisors (107507039).

285822625 is a wasteful number, since it uses less digits than its factorization.

285822625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2256 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 285822625 is about 16906.2895101202. The cubic root of 285822625 is about 658.7169940507.

The spelling of 285822625 in words is "two hundred eighty-five million, eight hundred twenty-two thousand, six hundred twenty-five".