258089 has 4 divisors (see below), whose sum is σ = 277956. Its totient is φ = 238224.

The previous prime is 258067. The next prime is 258101. The reversal of 258089 is 980852.

258089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40000 + 218089 = 200^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 258089 - 2¹² = 253993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258089.

It is not an unprimeable number, because it can be changed into a prime (258019) 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, 9914 + ... + 9939.

It is an arithmetic number, because the mean of its divisors is an integer number (69489).

2²⁵⁸⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

258089 is a deficient number, since it is larger than the sum of its proper divisors (19867).

258089 is a wasteful number, since it uses less digits than its factorization.

258089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19866.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 258089 is about 508.0246057033. The cubic root of 258089 is about 63.6682869514.

Adding to 258089 its sum of digits (32), we get a triangular number (258121 = T₇₁₈).

The spelling of 258089 in words is "two hundred fifty-eight thousand, eighty-nine".