249193975 has 6 divisors (see below), whose sum is σ = 309000560. Its totient is φ = 199355160.

The previous prime is 249193963. The next prime is 249194003. The reversal of 249193975 is 579391942.

It is not a de Polignac number, because 249193975 - 2⁵ = 249193943 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4983855 + ... + 4983904.

Almost surely, 2^249193975 is an apocalyptic number.

249193975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249193975 is a deficient number, since it is larger than the sum of its proper divisors (59806585).

249193975 is an equidigital number, since it uses as much as digits as its factorization.

249193975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9967769 (or 9967764 counting only the distinct ones).

The product of its digits is 612360, while the sum is 49.

The square root of 249193975 is about 15785.8789745772. The cubic root of 249193975 is about 629.2827774734.

The spelling of 249193975 in words is "two hundred forty-nine million, one hundred ninety-three thousand, nine hundred seventy-five".