2258865905 has 12 divisors (see below), whose sum is σ = 2879469660. Its totient is φ = 1700792064.

The previous prime is 2258865887. The next prime is 2258865913. The reversal of 2258865905 is 5095688522.

2258865905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 710915569 + 1547950336 = 26663^2 + 39344^2 .

It is not a de Polignac number, because 2258865905 - 2⁶ = 2258865841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780170 + ... + 783059.

It is an arithmetic number, because the mean of its divisors is an integer number (239955805).

Almost surely, 2^2258865905 is an apocalyptic number.

It is an amenable number.

2258865905 is a deficient number, since it is larger than the sum of its proper divisors (620603755).

2258865905 is a wasteful number, since it uses less digits than its factorization.

2258865905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563268 (or 1563251 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 50.

The square root of 2258865905 is about 47527.5278654382. The cubic root of 2258865905 is about 1312.0895705955.

The spelling of 2258865905 in words is "two billion, two hundred fifty-eight million, eight hundred sixty-five thousand, nine hundred five".