258280249 has 2 divisors, whose sum is σ = 258280250. Its totient is φ = 258280248.

The previous prime is 258280241. The next prime is 258280327. The reversal of 258280249 is 942082852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225961024 + 32319225 = 15032^2 + 5685^2 .

It is a cyclic number.

It is not a de Polignac number, because 258280249 - 2³ = 258280241 is a prime.

It is not a weakly prime, because it can be changed into another prime (258280241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129140124 + 129140125.

It is an arithmetic number, because the mean of its divisors is an integer number (129140125).

Almost surely, 2^258280249 is an apocalyptic number.

It is an amenable number.

258280249 is a deficient number, since it is larger than the sum of its proper divisors (1).

258280249 is an equidigital number, since it uses as much as digits as its factorization.

258280249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 258280249 is about 16071.0998067960. The cubic root of 258280249 is about 636.8400955066.

The spelling of 258280249 in words is "two hundred fifty-eight million, two hundred eighty thousand, two hundred forty-nine".