249750249 has 8 divisors (see below), whose sum is σ = 380571840. Its totient is φ = 142714416.

The previous prime is 249750217. The next prime is 249750289. The reversal of 249750249 is 942057942.

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

It is not a de Polignac number, because 249750249 - 2⁵ = 249750217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 249750249.

It is not an unprimeable number, because it can be changed into a prime (249750209) 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, 5946414 + ... + 5946455.

It is an arithmetic number, because the mean of its divisors is an integer number (47571480).

Almost surely, 2^249750249 is an apocalyptic number.

It is an amenable number.

249750249 is a deficient number, since it is larger than the sum of its proper divisors (130821591).

249750249 is a wasteful number, since it uses less digits than its factorization.

249750249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11892879.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 249750249 is about 15803.4885072885. The cubic root of 249750249 is about 629.7506773576.

The spelling of 249750249 in words is "two hundred forty-nine million, seven hundred fifty thousand, two hundred forty-nine".