80559893 has 2 divisors, whose sum is σ = 80559894. Its totient is φ = 80559892.

The previous prime is 80559887. The next prime is 80559901. The reversal of 80559893 is 39895508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45252529 + 35307364 = 6727^2 + 5942^2 .

It is a cyclic number.

It is not a de Polignac number, because 80559893 - 2¹⁴ = 80543509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80552893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40279946 + 40279947.

It is an arithmetic number, because the mean of its divisors is an integer number (40279947).

Almost surely, 2^80559893 is an apocalyptic number.

It is an amenable number.

80559893 is a deficient number, since it is larger than the sum of its proper divisors (1).

80559893 is an equidigital number, since it uses as much as digits as its factorization.

80559893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 80559893 is about 8975.5163082688. The cubic root of 80559893 is about 431.8898127899.

The spelling of 80559893 in words is "eighty million, five hundred fifty-nine thousand, eight hundred ninety-three".