258775 has 12 divisors (see below), whose sum is σ = 350424. Its totient is φ = 188000.

The previous prime is 258763. The next prime is 258779. The reversal of 258775 is 577852.

It is not a de Polignac number, because 258775 - 2⁵ = 258743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196 + ... + 745.

It is an arithmetic number, because the mean of its divisors is an integer number (29202).

2²⁵⁸⁷⁷⁵ is an apocalyptic number.

258775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

258775 is a deficient number, since it is larger than the sum of its proper divisors (91649).

258775 is a wasteful number, since it uses less digits than its factorization.

258775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 957 counting only the distinct ones).

The product of its digits is 19600, while the sum is 34.

The square root of 258775 is about 508.6993218002. The cubic root of 258775 is about 63.7246471018.

It can be divided in two parts, 2587 and 75, that added together give a palindrome (2662).

The spelling of 258775 in words is "two hundred fifty-eight thousand, seven hundred seventy-five".