80289523 has 2 divisors, whose sum is σ = 80289524. Its totient is φ = 80289522.

The previous prime is 80289511. The next prime is 80289529. The reversal of 80289523 is 32598208.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80289523 is a prime.

It is not a weakly prime, because it can be changed into another prime (80289529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40144761 + 40144762.

It is an arithmetic number, because the mean of its divisors is an integer number (40144762).

Almost surely, 2^80289523 is an apocalyptic number.

80289523 is a deficient number, since it is larger than the sum of its proper divisors (1).

80289523 is an equidigital number, since it uses as much as digits as its factorization.

80289523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 80289523 is about 8960.4421207885. The cubic root of 80289523 is about 431.4061108694.

The spelling of 80289523 in words is "eighty million, two hundred eighty-nine thousand, five hundred twenty-three".