80155589 has 2 divisors, whose sum is σ = 80155590. Its totient is φ = 80155588.

The previous prime is 80155577. The next prime is 80155591. The reversal of 80155589 is 98555108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74476900 + 5678689 = 8630^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 80155589 - 2⁴ = 80155573 is a prime.

Together with 80155591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80155189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40077794 + 40077795.

It is an arithmetic number, because the mean of its divisors is an integer number (40077795).

Almost surely, 2^80155589 is an apocalyptic number.

It is an amenable number.

80155589 is a deficient number, since it is larger than the sum of its proper divisors (1).

80155589 is an equidigital number, since it uses as much as digits as its factorization.

80155589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 80155589 is about 8952.9653746678. The cubic root of 80155589 is about 431.1660957259.

The spelling of 80155589 in words is "eighty million, one hundred fifty-five thousand, five hundred eighty-nine".