80520199 has 2 divisors, whose sum is σ = 80520200. Its totient is φ = 80520198.

The previous prime is 80520173. The next prime is 80520221. The reversal of 80520199 is 99102508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80520199 - 2¹⁵ = 80487431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80520149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40260099 + 40260100.

It is an arithmetic number, because the mean of its divisors is an integer number (40260100).

Almost surely, 2^80520199 is an apocalyptic number.

80520199 is a deficient number, since it is larger than the sum of its proper divisors (1).

80520199 is an equidigital number, since it uses as much as digits as its factorization.

80520199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 80520199 is about 8973.3047981220. The cubic root of 80520199 is about 431.8188666072.

The spelling of 80520199 in words is "eighty million, five hundred twenty thousand, one hundred ninety-nine".