80455549 has 2 divisors, whose sum is σ = 80455550. Its totient is φ = 80455548.

The previous prime is 80455517. The next prime is 80455559. The reversal of 80455549 is 94555408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79744900 + 710649 = 8930^2 + 843^2 .

It is a cyclic number.

It is not a de Polignac number, because 80455549 - 2⁵ = 80455517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80455559) 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, 40227774 + 40227775.

It is an arithmetic number, because the mean of its divisors is an integer number (40227775).

Almost surely, 2^80455549 is an apocalyptic number.

It is an amenable number.

80455549 is a deficient number, since it is larger than the sum of its proper divisors (1).

80455549 is an equidigital number, since it uses as much as digits as its factorization.

80455549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 80455549 is about 8969.7017230229. The cubic root of 80455549 is about 431.7032659463.

The spelling of 80455549 in words is "eighty million, four hundred fifty-five thousand, five hundred forty-nine".