80963825 has 6 divisors (see below), whose sum is σ = 100395174. Its totient is φ = 64771040.

The previous prime is 80963777. The next prime is 80963833. The reversal of 80963825 is 52836908.

It can be written as a sum of positive squares in 3 ways, for example, as 1540081 + 79423744 = 1241^2 + 8912^2 .

It is not a de Polignac number, because 80963825 - 2⁸ = 80963569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1619252 + ... + 1619301.

It is an arithmetic number, because the mean of its divisors is an integer number (16732529).

Almost surely, 2^80963825 is an apocalyptic number.

It is an amenable number.

80963825 is a deficient number, since it is larger than the sum of its proper divisors (19431349).

80963825 is a wasteful number, since it uses less digits than its factorization.

80963825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238563 (or 3238558 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 80963825 is about 8997.9900533397. The cubic root of 80963825 is about 432.6104499230.

The spelling of 80963825 in words is "eighty million, nine hundred sixty-three thousand, eight hundred twenty-five".