258992265 has 32 divisors (see below), whose sum is σ = 474218496. Its totient is φ = 118238400.

The previous prime is 258992233. The next prime is 258992273. The reversal of 258992265 is 562299852.

It is not a de Polignac number, because 258992265 - 2⁵ = 258992233 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 31 ways as a sum of consecutive naturals, for example, 119784 + ... + 121926.

It is an arithmetic number, because the mean of its divisors is an integer number (14819328).

Almost surely, 2^258992265 is an apocalyptic number.

It is an amenable number.

258992265 is a deficient number, since it is larger than the sum of its proper divisors (215226231).

258992265 is a wasteful number, since it uses less digits than its factorization.

258992265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309.

The product of its digits is 777600, while the sum is 48.

The square root of 258992265 is about 16093.2366228798. The cubic root of 258992265 is about 637.4247631318.

The spelling of 258992265 in words is "two hundred fifty-eight million, nine hundred ninety-two thousand, two hundred sixty-five".