258229775 has 24 divisors (see below), whose sum is σ = 336734400. Its totient is φ = 196156800.

The previous prime is 258229757. The next prime is 258229787. The reversal of 258229775 is 577922852.

258229775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258229775 - 2²⁴ = 241452559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41306 + ... + 47144.

It is an arithmetic number, because the mean of its divisors is an integer number (14030600).

Almost surely, 2^258229775 is an apocalyptic number.

258229775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

258229775 is a deficient number, since it is larger than the sum of its proper divisors (78504625).

258229775 is a wasteful number, since it uses less digits than its factorization.

258229775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5939 (or 5934 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 258229775 is about 16069.5293957228. The cubic root of 258229775 is about 636.7986083220.

The spelling of 258229775 in words is "two hundred fifty-eight million, two hundred twenty-nine thousand, seven hundred seventy-five".