2258591849 has 2 divisors, whose sum is σ = 2258591850. Its totient is φ = 2258591848.

The previous prime is 2258591837. The next prime is 2258591869. The reversal of 2258591849 is 9481958522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965326224 + 293265625 = 44332^2 + 17125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2258591849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2258591849.

It is not a weakly prime, because it can be changed into another prime (2258591869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129295924 + 1129295925.

It is an arithmetic number, because the mean of its divisors is an integer number (1129295925).

Almost surely, 2^2258591849 is an apocalyptic number.

It is an amenable number.

2258591849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2258591849 is an equidigital number, since it uses as much as digits as its factorization.

2258591849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 53.

The square root of 2258591849 is about 47524.6446488556. The cubic root of 2258591849 is about 1312.0365055357.

The spelling of 2258591849 in words is "two billion, two hundred fifty-eight million, five hundred ninety-one thousand, eight hundred forty-nine".