80535289 has 2 divisors, whose sum is σ = 80535290. Its totient is φ = 80535288.

The previous prime is 80535271. The next prime is 80535361. The reversal of 80535289 is 98253508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50197225 + 30338064 = 7085^2 + 5508^2 .

It is a cyclic number.

It is not a de Polignac number, because 80535289 - 2⁹ = 80534777 is a prime.

It is not a weakly prime, because it can be changed into another prime (80535209) 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, 40267644 + 40267645.

It is an arithmetic number, because the mean of its divisors is an integer number (40267645).

Almost surely, 2^80535289 is an apocalyptic number.

It is an amenable number.

80535289 is a deficient number, since it is larger than the sum of its proper divisors (1).

80535289 is an equidigital number, since it uses as much as digits as its factorization.

80535289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 80535289 is about 8974.1455860711. The cubic root of 80535289 is about 431.8458401275.

The spelling of 80535289 in words is "eighty million, five hundred thirty-five thousand, two hundred eighty-nine".