80560009 has 2 divisors, whose sum is σ = 80560010. Its totient is φ = 80560008.

The previous prime is 80560003. The next prime is 80560033. The reversal of 80560009 is 90006508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 25280784 = 7435^2 + 5028^2 .

It is a cyclic number.

It is not a de Polignac number, because 80560009 - 2⁷ = 80559881 is a prime.

It is equal to p_4700188 and since 80560009 and 4700188 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80560003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40280004 + 40280005.

It is an arithmetic number, because the mean of its divisors is an integer number (40280005).

Almost surely, 2^80560009 is an apocalyptic number.

It is an amenable number.

80560009 is a deficient number, since it is larger than the sum of its proper divisors (1).

80560009 is an equidigital number, since it uses as much as digits as its factorization.

80560009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 80560009 is about 8975.5227702903. The cubic root of 80560009 is about 431.8900200858.

The spelling of 80560009 in words is "eighty million, five hundred sixty thousand, nine".