258585945 has 16 divisors (see below), whose sum is σ = 413940672. Its totient is φ = 137844800.

The previous prime is 258585913. The next prime is 258585959. The reversal of 258585945 is 549585852.

It is a happy number.

It is not a de Polignac number, because 258585945 - 2⁵ = 258585913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48670 + ... + 53720.

It is an arithmetic number, because the mean of its divisors is an integer number (25871292).

Almost surely, 2^258585945 is an apocalyptic number.

It is an amenable number.

258585945 is a deficient number, since it is larger than the sum of its proper divisors (155354727).

258585945 is a wasteful number, since it uses less digits than its factorization.

258585945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8472.

The product of its digits is 2880000, while the sum is 51.

The square root of 258585945 is about 16080.6077310530. The cubic root of 258585945 is about 637.0912473912.

The spelling of 258585945 in words is "two hundred fifty-eight million, five hundred eighty-five thousand, nine hundred forty-five".