249960259 has 2 divisors, whose sum is σ = 249960260. Its totient is φ = 249960258.

The previous prime is 249960253. The next prime is 249960281. The reversal of 249960259 is 952069942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249960259 - 2²⁷ = 115742531 is a prime.

It is not a weakly prime, because it can be changed into another prime (249960253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124980129 + 124980130.

It is an arithmetic number, because the mean of its divisors is an integer number (124980130).

Almost surely, 2^249960259 is an apocalyptic number.

249960259 is a deficient number, since it is larger than the sum of its proper divisors (1).

249960259 is an equidigital number, since it uses as much as digits as its factorization.

249960259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 249960259 is about 15810.1315301297. The cubic root of 249960259 is about 629.9271428302.

The spelling of 249960259 in words is "two hundred forty-nine million, nine hundred sixty thousand, two hundred fifty-nine".