258308263 has 2 divisors, whose sum is σ = 258308264. Its totient is φ = 258308262.

The previous prime is 258308233. The next prime is 258308269. The reversal of 258308263 is 362803852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258308263 - 2¹⁷ = 258177191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258308269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129154131 + 129154132.

It is an arithmetic number, because the mean of its divisors is an integer number (129154132).

Almost surely, 2^258308263 is an apocalyptic number.

258308263 is a deficient number, since it is larger than the sum of its proper divisors (1).

258308263 is an equidigital number, since it uses as much as digits as its factorization.

258308263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 258308263 is about 16071.9713476599. The cubic root of 258308263 is about 636.8631193261.

The spelling of 258308263 in words is "two hundred fifty-eight million, three hundred eight thousand, two hundred sixty-three".