258085 has 8 divisors (see below), whose sum is σ = 314496. Its totient is φ = 203280.

The previous prime is 258067. The next prime is 258101. The reversal of 258085 is 580852.

258085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-258085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9 + ... + 718.

It is an arithmetic number, because the mean of its divisors is an integer number (39312).

2²⁵⁸⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

258085 is a deficient number, since it is larger than the sum of its proper divisors (56411).

258085 is an equidigital number, since it uses as much as digits as its factorization.

258085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 258085 is about 508.0206688709. The cubic root of 258085 is about 63.6679580281.

The spelling of 258085 in words is "two hundred fifty-eight thousand, eighty-five".