249995027 has 12 divisors (see below), whose sum is σ = 275325840. Its totient is φ = 226532592.

The previous prime is 249995017. The next prime is 249995033. The reversal of 249995027 is 720599942.

It is not a de Polignac number, because 249995027 - 2⁶ = 249994963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249995017) by changing a digit.

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, 6752 + ... + 23357.

It is an arithmetic number, because the mean of its divisors is an integer number (22943820).

Almost surely, 2^249995027 is an apocalyptic number.

249995027 is a deficient number, since it is larger than the sum of its proper divisors (25330813).

249995027 is a wasteful number, since it uses less digits than its factorization.

249995027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30170 (or 30151 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 249995027 is about 15811.2310399918. The cubic root of 249995027 is about 629.9563478615.

The spelling of 249995027 in words is "two hundred forty-nine million, nine hundred ninety-five thousand, twenty-seven".