258555 has 16 divisors (see below), whose sum is σ = 451584. Its totient is φ = 125280.

The previous prime is 258551. The next prime is 258563. The reversal of 258555 is 555852.

It is not a de Polignac number, because 258555 - 2² = 258551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (28224).

2²⁵⁸⁵⁵⁵ is an apocalyptic number.

258555 is a deficient number, since it is larger than the sum of its proper divisors (193029).

258555 is a wasteful number, since it uses less digits than its factorization.

258555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its digits is 10000, while the sum is 30.

The square root of 258555 is about 508.4830380652. The cubic root of 258555 is about 63.7065832791.

The spelling of 258555 in words is "two hundred fifty-eight thousand, five hundred fifty-five".