80831025 has 54 divisors (see below), whose sum is σ = 159189030. Its totient is φ = 39177600.

The previous prime is 80831017. The next prime is 80831029. The reversal of 80831025 is 52013808.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 853776 + 79977249 = 924^2 + 8943^2 .

It is not a de Polignac number, because 80831025 - 2³ = 80831017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80831025.

It is not an unprimeable number, because it can be changed into a prime (80831029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 25741 + ... + 28709.

It is an arithmetic number, because the mean of its divisors is an integer number (2947945).

Almost surely, 2^80831025 is an apocalyptic number.

It is an amenable number.

80831025 is a deficient number, since it is larger than the sum of its proper divisors (78358005).

80831025 is a wasteful number, since it uses less digits than its factorization.

80831025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 80831025 is about 8990.6075990447. The cubic root of 80831025 is about 432.3737923485.

The spelling of 80831025 in words is "eighty million, eight hundred thirty-one thousand, twenty-five".