80530559 has 4 divisors (see below), whose sum is σ = 80550480. Its totient is φ = 80510640.

The previous prime is 80530511. The next prime is 80530577. The reversal of 80530559 is 95503508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80530559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80532559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502 + ... + 12779.

It is an arithmetic number, because the mean of its divisors is an integer number (20137620).

Almost surely, 2^80530559 is an apocalyptic number.

80530559 is a deficient number, since it is larger than the sum of its proper divisors (19921).

80530559 is a wasteful number, since it uses less digits than its factorization.

80530559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19920.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 80530559 is about 8973.8820473639. The cubic root of 80530559 is about 431.8373855695.

The spelling of 80530559 in words is "eighty million, five hundred thirty thousand, five hundred fifty-nine".