258365065 has 32 divisors (see below), whose sum is σ = 380830464. Its totient is φ = 164229120.

The previous prime is 258365039. The next prime is 258365101. The reversal of 258365065 is 560563852.

It is not a de Polignac number, because 258365065 - 2⁵ = 258365033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36625 + ... + 43105.

It is an arithmetic number, because the mean of its divisors is an integer number (11900952).

Almost surely, 2^258365065 is an apocalyptic number.

It is an amenable number.

258365065 is a deficient number, since it is larger than the sum of its proper divisors (122465399).

258365065 is a wasteful number, since it uses less digits than its factorization.

258365065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 258365065 is about 16073.7383641765. The cubic root of 258365065 is about 636.9097979820.

The spelling of 258365065 in words is "two hundred fifty-eight million, three hundred sixty-five thousand, sixty-five".