80437559 has 2 divisors, whose sum is σ = 80437560. Its totient is φ = 80437558.

The previous prime is 80437471. The next prime is 80437573. The reversal of 80437559 is 95573408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80437559 - 2²⁰ = 79388983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80437579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40218779 + 40218780.

It is an arithmetic number, because the mean of its divisors is an integer number (40218780).

Almost surely, 2^80437559 is an apocalyptic number.

80437559 is a deficient number, since it is larger than the sum of its proper divisors (1).

80437559 is an equidigital number, since it uses as much as digits as its factorization.

80437559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 80437559 is about 8968.6988465440. The cubic root of 80437559 is about 431.6710870153.

The spelling of 80437559 in words is "eighty million, four hundred thirty-seven thousand, five hundred fifty-nine".