2305849561 has 2 divisors, whose sum is σ = 2305849562. Its totient is φ = 2305849560.

The previous prime is 2305849531. The next prime is 2305849571. The reversal of 2305849561 is 1659485032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2273859225 + 31990336 = 47685^2 + 5656^2 .

It is a cyclic number.

It is not a de Polignac number, because 2305849561 - 2⁷ = 2305849433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2305849531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152924780 + 1152924781.

It is an arithmetic number, because the mean of its divisors is an integer number (1152924781).

Almost surely, 2^2305849561 is an apocalyptic number.

It is an amenable number.

2305849561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2305849561 is an equidigital number, since it uses as much as digits as its factorization.

2305849561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 2305849561 is about 48019.2623954179. The cubic root of 2305849561 is about 1321.1242260861.

The spelling of 2305849561 in words is "two billion, three hundred five million, eight hundred forty-nine thousand, five hundred sixty-one".