80050561 has 2 divisors, whose sum is σ = 80050562. Its totient is φ = 80050560.

The previous prime is 80050549. The next prime is 80050567. The reversal of 80050561 is 16505008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64400625 + 15649936 = 8025^2 + 3956^2 .

It is a cyclic number.

It is not a de Polignac number, because 80050561 - 2⁹ = 80050049 is a prime.

It is not a weakly prime, because it can be changed into another prime (80050567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40025280 + 40025281.

It is an arithmetic number, because the mean of its divisors is an integer number (40025281).

Almost surely, 2^80050561 is an apocalyptic number.

It is an amenable number.

80050561 is a deficient number, since it is larger than the sum of its proper divisors (1).

80050561 is an equidigital number, since it uses as much as digits as its factorization.

80050561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 80050561 is about 8947.0979093782. The cubic root of 80050561 is about 430.9776941997.

Adding to 80050561 its reverse (16505008), we get a palindrome (96555569).

The spelling of 80050561 in words is "eighty million, fifty thousand, five hundred sixty-one".