80544959 has 4 divisors (see below), whose sum is σ = 87867240. Its totient is φ = 73222680.

The previous prime is 80544953. The next prime is 80544979. The reversal of 80544959 is 95944508.

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 80544959 - 2⁸ = 80544703 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 (80544953) 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, 3661124 + ... + 3661145.

It is an arithmetic number, because the mean of its divisors is an integer number (21966810).

Almost surely, 2^80544959 is an apocalyptic number.

80544959 is a deficient number, since it is larger than the sum of its proper divisors (7322281).

80544959 is a wasteful number, since it uses less digits than its factorization.

80544959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322280.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 80544959 is about 8974.6843398529. The cubic root of 80544959 is about 431.8631235743.

It can be divided in two parts, 805449 and 59, that added together give a palindrome (805508).

The spelling of 80544959 in words is "eighty million, five hundred forty-four thousand, nine hundred fifty-nine".