285363825 has 24 divisors (see below), whose sum is σ = 479805600. Its totient is φ = 149612160.

The previous prime is 285363797. The next prime is 285363851. The reversal of 285363825 is 528363582.

It is not a de Polignac number, because 285363825 - 2⁶ = 285363761 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 27820 + ... + 36669.

It is an arithmetic number, because the mean of its divisors is an integer number (19991900).

Almost surely, 2^285363825 is an apocalyptic number.

285363825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285363825 is a deficient number, since it is larger than the sum of its proper divisors (194441775).

285363825 is a wasteful number, since it uses less digits than its factorization.

285363825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64561 (or 64556 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 285363825 is about 16892.7151458846. The cubic root of 285363825 is about 658.3643496932.

The spelling of 285363825 in words is "two hundred eighty-five million, three hundred sixty-three thousand, eight hundred twenty-five".