80391825 has 24 divisors (see below), whose sum is σ = 147684000. Its totient is φ = 42875280.

The previous prime is 80391767. The next prime is 80391833. The reversal of 80391825 is 52819308.

It is not a de Polignac number, because 80391825 - 2¹⁰ = 80390801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80391825.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 58875 + ... + 60224.

It is an arithmetic number, because the mean of its divisors is an integer number (6153500).

Almost surely, 2^80391825 is an apocalyptic number.

It is an amenable number.

80391825 is a deficient number, since it is larger than the sum of its proper divisors (67292175).

80391825 is a wasteful number, since it uses less digits than its factorization.

80391825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119118 (or 119107 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80391825 is about 8966.1488388271. The cubic root of 80391825 is about 431.5892604471.

The spelling of 80391825 in words is "eighty million, three hundred ninety-one thousand, eight hundred twenty-five".