249933 has 4 divisors (see below), whose sum is σ = 333248. Its totient is φ = 166620.

The previous prime is 249923. The next prime is 249943. The reversal of 249933 is 339942.

249933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (249923) and next prime (249943).

It is not a de Polignac number, because 249933 - 2⁸ = 249677 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249933.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 249933.

It is not an unprimeable number, because it can be changed into a prime (249923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41653 + ... + 41658.

It is an arithmetic number, because the mean of its divisors is an integer number (83312).

2²⁴⁹⁹³³ is an apocalyptic number.

It is an amenable number.

249933 is a deficient number, since it is larger than the sum of its proper divisors (83315).

249933 is an equidigital number, since it uses as much as digits as its factorization.

249933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83314.

The product of its digits is 5832, while the sum is 30.

The square root of 249933 is about 499.9329955104. The cubic root of 249933 is about 62.9904243446.

Subtracting 249933 from its reverse (339942), we obtain a palindrome (90009).

The spelling of 249933 in words is "two hundred forty-nine thousand, nine hundred thirty-three".