258025585 has 16 divisors (see below), whose sum is σ = 322217280. Its totient is φ = 198192960.

The previous prime is 258025583. The next prime is 258025601. The reversal of 258025585 is 585520852.

It is a happy number.

It is not a de Polignac number, because 258025585 - 2¹ = 258025583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258025583) 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 15 ways as a sum of consecutive naturals, for example, 2515 + ... + 22855.

It is an arithmetic number, because the mean of its divisors is an integer number (20138580).

Almost surely, 2^258025585 is an apocalyptic number.

It is an amenable number.

258025585 is a deficient number, since it is larger than the sum of its proper divisors (64191695).

258025585 is a wasteful number, since it uses less digits than its factorization.

258025585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20448.

The product of its (nonzero) digits is 160000, while the sum is 40.

The square root of 258025585 is about 16063.1748107278. The cubic root of 258025585 is about 636.6307188326.

The spelling of 258025585 in words is "two hundred fifty-eight million, twenty-five thousand, five hundred eighty-five".