249989295 has 8 divisors (see below), whose sum is σ = 399982896. Its totient is φ = 133327616.

The previous prime is 249989269. The next prime is 249989321. The reversal of 249989295 is 592989942.

It is an interprime number because it is at equal distance from previous prime (249989269) and next prime (249989321).

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

It is a cyclic number.

It is not a de Polignac number, because 249989295 - 2⁵ = 249989263 is a prime.

It is a super-2 number, since 2×249989295² = 124989295229194050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8332962 + ... + 8332991.

It is an arithmetic number, because the mean of its divisors is an integer number (49997862).

Almost surely, 2^249989295 is an apocalyptic number.

249989295 is a deficient number, since it is larger than the sum of its proper divisors (149993601).

249989295 is a wasteful number, since it uses less digits than its factorization.

249989295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16665961.

The product of its digits is 4199040, while the sum is 57.

The square root of 249989295 is about 15811.0497753944. The cubic root of 249989295 is about 629.9515331825.

The spelling of 249989295 in words is "two hundred forty-nine million, nine hundred eighty-nine thousand, two hundred ninety-five".