80566223 has 2 divisors, whose sum is σ = 80566224. Its totient is φ = 80566222.

The previous prime is 80566193. The next prime is 80566259. The reversal of 80566223 is 32266508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80566223 - 2⁸ = 80565967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80566223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80565223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40283111 + 40283112.

It is an arithmetic number, because the mean of its divisors is an integer number (40283112).

Almost surely, 2^80566223 is an apocalyptic number.

80566223 is a deficient number, since it is larger than the sum of its proper divisors (1).

80566223 is an equidigital number, since it uses as much as digits as its factorization.

80566223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 80566223 is about 8975.8689272961. The cubic root of 80566223 is about 431.9011244191.

The spelling of 80566223 in words is "eighty million, five hundred sixty-six thousand, two hundred twenty-three".