258305329 has 2 divisors, whose sum is σ = 258305330. Its totient is φ = 258305328.

The previous prime is 258305263. The next prime is 258305339. The reversal of 258305329 is 923503852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142850304 + 115455025 = 11952^2 + 10745^2 .

It is a cyclic number.

It is not a de Polignac number, because 258305329 - 2¹⁵ = 258272561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258305339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129152664 + 129152665.

It is an arithmetic number, because the mean of its divisors is an integer number (129152665).

Almost surely, 2^258305329 is an apocalyptic number.

It is an amenable number.

258305329 is a deficient number, since it is larger than the sum of its proper divisors (1).

258305329 is an equidigital number, since it uses as much as digits as its factorization.

258305329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 258305329 is about 16071.8800704834. The cubic root of 258305329 is about 636.8607080424.

The spelling of 258305329 in words is "two hundred fifty-eight million, three hundred five thousand, three hundred twenty-nine".