258392881 has 2 divisors, whose sum is σ = 258392882. Its totient is φ = 258392880.

The previous prime is 258392873. The next prime is 258392983. The reversal of 258392881 is 188293852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187142400 + 71250481 = 13680^2 + 8441^2 .

It is a cyclic number.

It is not a de Polignac number, because 258392881 - 2³ = 258392873 is a prime.

It is a super-2 number, since 2×258392881² = 133533761902960322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258392821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129196440 + 129196441.

It is an arithmetic number, because the mean of its divisors is an integer number (129196441).

Almost surely, 2^258392881 is an apocalyptic number.

It is an amenable number.

258392881 is a deficient number, since it is larger than the sum of its proper divisors (1).

258392881 is an equidigital number, since it uses as much as digits as its factorization.

258392881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 46.

The square root of 258392881 is about 16074.6036031997. The cubic root of 258392881 is about 636.9326540741.

The spelling of 258392881 in words is "two hundred fifty-eight million, three hundred ninety-two thousand, eight hundred eighty-one".