2600566489 has 2 divisors, whose sum is σ = 2600566490. Its totient is φ = 2600566488.

The previous prime is 2600566453. The next prime is 2600566511. The reversal of 2600566489 is 9846650062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2406883600 + 193682889 = 49060^2 + 13917^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600566489 - 2⁷ = 2600566361 is a prime.

It is not a weakly prime, because it can be changed into another prime (2600566439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300283244 + 1300283245.

It is an arithmetic number, because the mean of its divisors is an integer number (1300283245).

Almost surely, 2^2600566489 is an apocalyptic number.

It is an amenable number.

2600566489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2600566489 is an equidigital number, since it uses as much as digits as its factorization.

2600566489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 2600566489 is about 50995.7497150498. The cubic root of 2600566489 is about 1375.1687266666.

The spelling of 2600566489 in words is "two billion, six hundred million, five hundred sixty-six thousand, four hundred eighty-nine".