249963 has 8 divisors (see below), whose sum is σ = 380928. Its totient is φ = 142824.

The previous prime is 249947. The next prime is 249967. The reversal of 249963 is 369942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 249963 - 2⁴ = 249947 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4³ + 9⁴ + 9⁴ + 6⁶ + 3¹⁰ .

It is not an unprimeable number, because it can be changed into a prime (249967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5931 + ... + 5972.

It is an arithmetic number, because the mean of its divisors is an integer number (47616).

2²⁴⁹⁹⁶³ is an apocalyptic number.

249963 is a deficient number, since it is larger than the sum of its proper divisors (130965).

249963 is a wasteful number, since it uses less digits than its factorization.

249963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11913.

The product of its digits is 11664, while the sum is 33.

The square root of 249963 is about 499.9629986309. The cubic root of 249963 is about 62.9929445362.

The spelling of 249963 in words is "two hundred forty-nine thousand, nine hundred sixty-three".