249950923 has 4 divisors (see below), whose sum is σ = 258013888. Its totient is φ = 241887960.

The previous prime is 249950917. The next prime is 249950929. The reversal of 249950923 is 329059942.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (249950917) and next prime (249950929).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249950923 is a prime.

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 249950923.

It is not an unprimeable number, because it can be changed into a prime (249950929) 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, 4031436 + ... + 4031497.

It is an arithmetic number, because the mean of its divisors is an integer number (64503472).

Almost surely, 2^249950923 is an apocalyptic number.

249950923 is a deficient number, since it is larger than the sum of its proper divisors (8062965).

249950923 is an equidigital number, since it uses as much as digits as its factorization.

249950923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8062964.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 249950923 is about 15809.8362736620. The cubic root of 249950923 is about 629.9193001528.

The spelling of 249950923 in words is "two hundred forty-nine million, nine hundred fifty thousand, nine hundred twenty-three".