249959375 has 12 divisors (see below), whose sum is σ = 312433128. Its totient is φ = 199965000.

The previous prime is 249959363. The next prime is 249959389. The reversal of 249959375 is 573959942.

It is not a de Polignac number, because 249959375 - 2¹⁴ = 249942991 is a prime.

It is a Duffinian number.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 36869 + ... + 43118.

It is an arithmetic number, because the mean of its divisors is an integer number (26036094).

Almost surely, 2^249959375 is an apocalyptic number.

249959375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249959375 is a deficient number, since it is larger than the sum of its proper divisors (62473753).

249959375 is an frugal number, since it uses more digits than its factorization.

249959375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80012 (or 79992 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 53.

The square root of 249959375 is about 15810.1035733483. The cubic root of 249959375 is about 629.9264002372.

The spelling of 249959375 in words is "two hundred forty-nine million, nine hundred fifty-nine thousand, three hundred seventy-five".