250312985 has 32 divisors (see below), whose sum is σ = 332978688. Its totient is φ = 179504640.

The previous prime is 250312957. The next prime is 250313017. The reversal of 250312985 is 589213052.

It is not a de Polignac number, because 250312985 - 2¹⁶ = 250247449 is a prime.

It is a super-2 number, since 2×250312985² = 125313180919220450, which contains 22 as substring.

It is a Duffinian number.

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 31 ways as a sum of consecutive naturals, for example, 336524 + ... + 337266.

It is an arithmetic number, because the mean of its divisors is an integer number (10405584).

Almost surely, 2^250312985 is an apocalyptic number.

It is an amenable number.

250312985 is a deficient number, since it is larger than the sum of its proper divisors (82665703).

250312985 is a wasteful number, since it uses less digits than its factorization.

250312985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 250312985 is about 15821.2826597593. The cubic root of 250312985 is about 630.2233062423.

The spelling of 250312985 in words is "two hundred fifty million, three hundred twelve thousand, nine hundred eighty-five".