5561006505049 has 2 divisors, whose sum is σ = 5561006505050. Its totient is φ = 5561006505048.

The previous prime is 5561006504981. The next prime is 5561006505071. The reversal of 5561006505049 is 9405056001655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3097927368649 + 2463079136400 = 1760093^2 + 1569420^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561006505049 - 2²¹ = 5561004407897 is a prime.

It is not a weakly prime, because it can be changed into another prime (5561006205049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780503252524 + 2780503252525.

It is an arithmetic number, because the mean of its divisors is an integer number (2780503252525).

Almost surely, 2^{5561006505049} is an apocalyptic number.

It is an amenable number.

5561006505049 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561006505049 is an equidigital number, since it uses as much as digits as its factorization.

5561006505049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 5561006505049 in words is "five trillion, five hundred sixty-one billion, six million, five hundred five thousand, forty-nine".