80205599 has 2 divisors, whose sum is σ = 80205600. Its totient is φ = 80205598.

The previous prime is 80205583. The next prime is 80205637. The reversal of 80205599 is 99550208.

It is a happy number.

It is an a-pointer prime, because the next prime (80205637) can be obtained adding 80205599 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80205599 - 2⁴ = 80205583 is a prime.

It is a super-2 number, since 2×80205599² = 12865876221897602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80205509) 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, 40102799 + 40102800.

It is an arithmetic number, because the mean of its divisors is an integer number (40102800).

Almost surely, 2^80205599 is an apocalyptic number.

80205599 is a deficient number, since it is larger than the sum of its proper divisors (1).

80205599 is an equidigital number, since it uses as much as digits as its factorization.

80205599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 80205599 is about 8955.7578685447. The cubic root of 80205599 is about 431.2557469233.

The spelling of 80205599 in words is "eighty million, two hundred five thousand, five hundred ninety-nine".