258545 has 16 divisors (see below), whose sum is σ = 362880. Its totient is φ = 173184.

The previous prime is 258539. The next prime is 258551. The reversal of 258545 is 545852.

258545 is nontrivially palindromic in base 15.

It is an interprime number because it is at equal distance from previous prime (258539) and next prime (258551).

It is a cyclic number.

It is not a de Polignac number, because 258545 - 2¹⁴ = 242161 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 258545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2²⁵⁸⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

258545 is a deficient number, since it is larger than the sum of its proper divisors (104335).

258545 is an equidigital number, since it uses as much as digits as its factorization.

258545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184.

The product of its digits is 8000, while the sum is 29.

The square root of 258545 is about 508.4732048004. The cubic root of 258545 is about 63.7057619528.

The spelling of 258545 in words is "two hundred fifty-eight thousand, five hundred forty-five".