8080561 has 2 divisors, whose sum is σ = 8080562. Its totient is φ = 8080560.

The previous prime is 8080537. The next prime is 8080591. The reversal of 8080561 is 1650808.

It is a happy number.

It is the 1161-st star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5035536 + 3045025 = 2244^2 + 1745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8080561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8080591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4040280 + 4040281.

It is an arithmetic number, because the mean of its divisors is an integer number (4040281).

Almost surely, 2^8080561 is an apocalyptic number.

It is an amenable number.

8080561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8080561 is an equidigital number, since it uses as much as digits as its factorization.

8080561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 8080561 is about 2842.6327585532. The cubic root of 8080561 is about 200.6691006917.

The spelling of 8080561 in words is "eight million, eighty thousand, five hundred sixty-one".