258904065 has 16 divisors (see below), whose sum is σ = 473424768. Its totient is φ = 118356096.

The previous prime is 258904027. The next prime is 258904073. The reversal of 258904065 is 560409852.

It is not a de Polignac number, because 258904065 - 2⁶ = 258904001 is a prime.

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, 1232772 + ... + 1232981.

It is an arithmetic number, because the mean of its divisors is an integer number (29589048).

Almost surely, 2^258904065 is an apocalyptic number.

It is an amenable number.

258904065 is a deficient number, since it is larger than the sum of its proper divisors (214520703).

258904065 is a wasteful number, since it uses less digits than its factorization.

258904065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465768.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 258904065 is about 16090.4961079514. The cubic root of 258904065 is about 637.3523964309.

The spelling of 258904065 in words is "two hundred fifty-eight million, nine hundred four thousand, sixty-five".