258244255 has 4 divisors (see below), whose sum is σ = 309893112. Its totient is φ = 206595400.

The previous prime is 258244243. The next prime is 258244279. The reversal of 258244255 is 552442852.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 258244255 - 2⁵ = 258244223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25824421 + ... + 25824430.

It is an arithmetic number, because the mean of its divisors is an integer number (77473278).

Almost surely, 2^258244255 is an apocalyptic number.

258244255 is a deficient number, since it is larger than the sum of its proper divisors (51648857).

258244255 is an equidigital number, since it uses as much as digits as its factorization.

258244255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51648856.

The product of its digits is 128000, while the sum is 37.

The square root of 258244255 is about 16069.9799315369. The cubic root of 258244255 is about 636.8105107340.

The spelling of 258244255 in words is "two hundred fifty-eight million, two hundred forty-four thousand, two hundred fifty-five".