249575 has 12 divisors (see below), whose sum is σ = 316200. Its totient is φ = 195360.

The previous prime is 249563. The next prime is 249583. The reversal of 249575 is 575942.

It is not a de Polignac number, because 249575 - 2¹⁶ = 184039 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1601 + ... + 1749.

It is an arithmetic number, because the mean of its divisors is an integer number (26350).

2²⁴⁹⁵⁷⁵ is an apocalyptic number.

249575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249575 is a deficient number, since it is larger than the sum of its proper divisors (66625).

249575 is a wasteful number, since it uses less digits than its factorization.

249575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 221 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 249575 is about 499.5748192213. The cubic root of 249575 is about 62.9603344838.

The spelling of 249575 in words is "two hundred forty-nine thousand, five hundred seventy-five".