258065265 has 16 divisors (see below), whose sum is σ = 414517248. Its totient is φ = 137097216.

The previous prime is 258065263. The next prime is 258065281. The reversal of 258065265 is 562560852.

It is a happy number.

It is not a de Polignac number, because 258065265 - 2¹ = 258065263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258065261) 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, 29617 + ... + 37326.

It is an arithmetic number, because the mean of its divisors is an integer number (25907328).

Almost surely, 2^258065265 is an apocalyptic number.

It is an amenable number.

258065265 is a deficient number, since it is larger than the sum of its proper divisors (156451983).

258065265 is a wasteful number, since it uses less digits than its factorization.

258065265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67208.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 258065265 is about 16064.4098864540. The cubic root of 258065265 is about 636.6633515295.

The spelling of 258065265 in words is "two hundred fifty-eight million, sixty-five thousand, two hundred sixty-five".