258113505 has 16 divisors (see below), whose sum is σ = 444749760. Its totient is φ = 127071168.

The previous prime is 258113497. The next prime is 258113539. The reversal of 258113505 is 505311852.

It is not a de Polignac number, because 258113505 - 2³ = 258113497 is a prime.

It is a Curzon number.

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, 661635 + ... + 662024.

It is an arithmetic number, because the mean of its divisors is an integer number (27796860).

Almost surely, 2^258113505 is an apocalyptic number.

It is an amenable number.

258113505 is a deficient number, since it is larger than the sum of its proper divisors (186636255).

258113505 is a wasteful number, since it uses less digits than its factorization.

258113505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323680.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 258113505 is about 16065.9112720070. The cubic root of 258113505 is about 636.7030194362.

The spelling of 258113505 in words is "two hundred fifty-eight million, one hundred thirteen thousand, five hundred five".