258611 has 2 divisors, whose sum is σ = 258612. Its totient is φ = 258610.

The previous prime is 258607. The next prime is 258613. The reversal of 258611 is 116852.

258611 is nontrivially palindromic in base 6.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258611 - 2² = 258607 is a prime.

Together with 258613, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258611.

It is not a weakly prime, because it can be changed into another prime (258613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129305 + 129306.

It is an arithmetic number, because the mean of its divisors is an integer number (129306).

2²⁵⁸⁶¹¹ is an apocalyptic number.

258611 is a deficient number, since it is larger than the sum of its proper divisors (1).

258611 is an equidigital number, since it uses as much as digits as its factorization.

258611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 23.

The square root of 258611 is about 508.5381008341. The cubic root of 258611 is about 63.7111823150.

The spelling of 258611 in words is "two hundred fifty-eight thousand, six hundred eleven".