2650660049 has 2 divisors, whose sum is σ = 2650660050. Its totient is φ = 2650660048.

The previous prime is 2650660031. The next prime is 2650660073. The reversal of 2650660049 is 9400660562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2271189649 + 379470400 = 47657^2 + 19480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2650660049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2650659994 and 2650660021.

It is not a weakly prime, because it can be changed into another prime (2650660079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325330024 + 1325330025.

It is an arithmetic number, because the mean of its divisors is an integer number (1325330025).

Almost surely, 2^2650660049 is an apocalyptic number.

It is an amenable number.

2650660049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650660049 is an equidigital number, since it uses as much as digits as its factorization.

2650660049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 2650660049 is about 51484.5612684036. The cubic root of 2650660049 is about 1383.9423864288.

The spelling of 2650660049 in words is "two billion, six hundred fifty million, six hundred sixty thousand, forty-nine".