258250578317 has 2 divisors, whose sum is σ = 258250578318. Its totient is φ = 258250578316.

The previous prime is 258250578269. The next prime is 258250578331. The reversal of 258250578317 is 713875052852.

It is a happy number.

258250578317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154554341956 + 103696236361 = 393134^2 + 322019^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258250578317 is a prime.

It is a super-2 number, since 2×258250578317² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258250578617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129125289158 + 129125289159.

It is an arithmetic number, because the mean of its divisors is an integer number (129125289159).

Almost surely, 2^258250578317 is an apocalyptic number.

It is an amenable number.

258250578317 is a deficient number, since it is larger than the sum of its proper divisors (1).

258250578317 is an equidigital number, since it uses as much as digits as its factorization.

258250578317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704000, while the sum is 53.

The spelling of 258250578317 in words is "two hundred fifty-eight billion, two hundred fifty million, five hundred seventy-eight thousand, three hundred seventeen".