285124802225 has 12 divisors (see below), whose sum is σ = 354019370700. Its totient is φ = 227800089600.

The previous prime is 285124802129. The next prime is 285124802239. The reversal of 285124802225 is 522208421582.

It can be written as a sum of positive squares in 6 ways, for example, as 126389493169 + 158735309056 = 355513^2 + 398416^2 .

It is not a de Polignac number, because 285124802225 - 2³⁴ = 267944933041 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7474400 + ... + 7512449.

It is an arithmetic number, because the mean of its divisors is an integer number (29501614225).

Almost surely, 2^285124802225 is an apocalyptic number.

285124802225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285124802225 is a deficient number, since it is larger than the sum of its proper divisors (68894568475).

285124802225 is a wasteful number, since it uses less digits than its factorization.

285124802225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14987620 (or 14987615 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 41.

The spelling of 285124802225 in words is "two hundred eighty-five billion, one hundred twenty-four million, eight hundred two thousand, two hundred twenty-five".