258311 has 4 divisors (see below), whose sum is σ = 261072. Its totient is φ = 255552.

The previous prime is 258299. The next prime is 258317. The reversal of 258311 is 113852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 258311 - 2¹⁰ = 257287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258311.

It is not an unprimeable number, because it can be changed into a prime (258317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235 + ... + 1428.

It is an arithmetic number, because the mean of its divisors is an integer number (65268).

2²⁵⁸³¹¹ is an apocalyptic number.

258311 is a deficient number, since it is larger than the sum of its proper divisors (2761).

258311 is an equidigital number, since it uses as much as digits as its factorization.

258311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its digits is 240, while the sum is 20.

The square root of 258311 is about 508.2430520922. The cubic root of 258311 is about 63.6865368690.

The spelling of 258311 in words is "two hundred fifty-eight thousand, three hundred eleven".