258345611 has 2 divisors, whose sum is σ = 258345612. Its totient is φ = 258345610.

The previous prime is 258345569. The next prime is 258345649. The reversal of 258345611 is 116543852.

258345611 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 is a cyclic number.

It is not a de Polignac number, because 258345611 - 2⁶ = 258345547 is a prime.

It is not a weakly prime, because it can be changed into another prime (258345811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129172805 + 129172806.

It is an arithmetic number, because the mean of its divisors is an integer number (129172806).

Almost surely, 2^258345611 is an apocalyptic number.

258345611 is a deficient number, since it is larger than the sum of its proper divisors (1).

258345611 is an equidigital number, since it uses as much as digits as its factorization.

258345611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 258345611 is about 16073.1332042014. The cubic root of 258345611 is about 636.8938118757.

The spelling of 258345611 in words is "two hundred fifty-eight million, three hundred forty-five thousand, six hundred eleven".