80332591 has 2 divisors, whose sum is σ = 80332592. Its totient is φ = 80332590.

The previous prime is 80332579. The next prime is 80332597. The reversal of 80332591 is 19523308.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80332591 - 2¹³ = 80324399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80332597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40166295 + 40166296.

It is an arithmetic number, because the mean of its divisors is an integer number (40166296).

Almost surely, 2^80332591 is an apocalyptic number.

80332591 is a deficient number, since it is larger than the sum of its proper divisors (1).

80332591 is an equidigital number, since it uses as much as digits as its factorization.

80332591 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 31.

The square root of 80332591 is about 8962.8450282262. The cubic root of 80332591 is about 431.4832337474.

Adding to 80332591 its reverse (19523308), we get a palindrome (99855899).

The spelling of 80332591 in words is "eighty million, three hundred thirty-two thousand, five hundred ninety-one".