258872258 has 18 divisors (see below), whose sum is σ = 402334803. Its totient is φ = 124919460.

The previous prime is 258872249. The next prime is 258872281. The reversal of 258872258 is 852278852.

It can be written as a sum of positive squares in only one way, i.e., 129436129 + 129436129 = 11377^2 + 11377^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11377.

It is a Duffinian number.

Its product of digits (716800) is a multiple of the sum of its prime divisors (400).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 705191 + ... + 705557.

Almost surely, 2^258872258 is an apocalyptic number.

258872258 is a deficient number, since it is larger than the sum of its proper divisors (143462545).

258872258 is an frugal number, since it uses more digits than its factorization.

258872258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 400 counting only the distinct ones).

The product of its digits is 716800, while the sum is 47.

The square root of 258872258 is about 16089.5076991187. The cubic root of 258872258 is about 637.3262952598.

The spelling of 258872258 in words is "two hundred fifty-eight million, eight hundred seventy-two thousand, two hundred fifty-eight".