80752559 has 4 divisors (see below), whose sum is σ = 83537160. Its totient is φ = 77967960.

The previous prime is 80752543. The next prime is 80752561. The reversal of 80752559 is 95525708.

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

It is a cyclic number.

It is not a de Polignac number, because 80752559 - 2⁴ = 80752543 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 (80752589) 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, 1392257 + ... + 1392314.

It is an arithmetic number, because the mean of its divisors is an integer number (20884290).

Almost surely, 2^80752559 is an apocalyptic number.

80752559 is a deficient number, since it is larger than the sum of its proper divisors (2784601).

80752559 is a wasteful number, since it uses less digits than its factorization.

80752559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784600.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 80752559 is about 8986.2427632465. The cubic root of 80752559 is about 432.2338393790.

The spelling of 80752559 in words is "eighty million, seven hundred fifty-two thousand, five hundred fifty-nine".