258008913 has 12 divisors (see below), whose sum is σ = 374836020. Its totient is φ = 171010656.

The previous prime is 258008909. The next prime is 258008921. The reversal of 258008913 is 319800852.

It can be written as a sum of positive squares in 2 ways, for example, as 223293249 + 34715664 = 14943^2 + 5892^2 .

It is not a de Polignac number, because 258008913 - 2² = 258008909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258007913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81298 + ... + 84411.

It is an arithmetic number, because the mean of its divisors is an integer number (31236335).

Almost surely, 2^258008913 is an apocalyptic number.

It is an amenable number.

258008913 is a deficient number, since it is larger than the sum of its proper divisors (116827107).

258008913 is a wasteful number, since it uses less digits than its factorization.

258008913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165888 (or 165885 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 258008913 is about 16062.6558513840. The cubic root of 258008913 is about 636.6170068385.

The spelling of 258008913 in words is "two hundred fifty-eight million, eight thousand, nine hundred thirteen".