258655 has 12 divisors (see below), whose sum is σ = 331560. Its totient is φ = 193664.

The previous prime is 258637. The next prime is 258659. The reversal of 258655 is 556852.

It is not a de Polignac number, because 258655 - 2⁵ = 258623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258659) 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, 1356 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (27630).

2²⁵⁸⁶⁵⁵ is an apocalyptic number.

258655 is a deficient number, since it is larger than the sum of its proper divisors (72905).

258655 is a wasteful number, since it uses less digits than its factorization.

258655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 201 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 258655 is about 508.5813602562. The cubic root of 258655 is about 63.7147953774.

The spelling of 258655 in words is "two hundred fifty-eight thousand, six hundred fifty-five".