258504317 has 2 divisors, whose sum is σ = 258504318. Its totient is φ = 258504316.

The previous prime is 258504283. The next prime is 258504343. The reversal of 258504317 is 713405852.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215326276 + 43178041 = 14674^2 + 6571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258504317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258504377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129252158 + 129252159.

It is an arithmetic number, because the mean of its divisors is an integer number (129252159).

Almost surely, 2^258504317 is an apocalyptic number.

It is an amenable number.

258504317 is a deficient number, since it is larger than the sum of its proper divisors (1).

258504317 is an equidigital number, since it uses as much as digits as its factorization.

258504317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 258504317 is about 16078.0694425668. The cubic root of 258504317 is about 637.0242033279.

The spelling of 258504317 in words is "two hundred fifty-eight million, five hundred four thousand, three hundred seventeen".