258244085 has 16 divisors (see below), whose sum is σ = 345261312. Its totient is φ = 183816000.

The previous prime is 258244081. The next prime is 258244087. The reversal of 258244085 is 580442852.

It is not a de Polignac number, because 258244085 - 2² = 258244081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258244081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47366 + ... + 52535.

It is an arithmetic number, because the mean of its divisors is an integer number (21578832).

Almost surely, 2^258244085 is an apocalyptic number.

It is an amenable number.

258244085 is a deficient number, since it is larger than the sum of its proper divisors (87017227).

258244085 is a wasteful number, since it uses less digits than its factorization.

258244085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99964.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 258244085 is about 16069.9746421704. The cubic root of 258244085 is about 636.8103709983.

The spelling of 258244085 in words is "two hundred fifty-eight million, two hundred forty-four thousand, eighty-five".