249085875 has 32 divisors (see below), whose sum is σ = 421312320. Its totient is φ = 130656000.

The previous prime is 249085873. The next prime is 249085909. The reversal of 249085875 is 578580942.

It is not a de Polignac number, because 249085875 - 2¹ = 249085873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249085873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17431 + ... + 28319.

It is an arithmetic number, because the mean of its divisors is an integer number (13166010).

Almost surely, 2^249085875 is an apocalyptic number.

249085875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249085875 is a deficient number, since it is larger than the sum of its proper divisors (172226445).

249085875 is a wasteful number, since it uses less digits than its factorization.

249085875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968 (or 10958 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 249085875 is about 15782.4546569917. The cubic root of 249085875 is about 629.1917703144.

The spelling of 249085875 in words is "two hundred forty-nine million, eighty-five thousand, eight hundred seventy-five".