8081725 has 12 divisors (see below), whose sum is σ = 10293364. Its totient is φ = 6289920.

The previous prime is 8081719. The next prime is 8081737. The reversal of 8081725 is 5271808.

It can be written as a sum of positive squares in 6 ways, for example, as 4761 + 8076964 = 69^2 + 2842^2 .

It is not a de Polignac number, because 8081725 - 2¹⁹ = 7557437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3444 + ... + 5293.

Almost surely, 2^8081725 is an apocalyptic number.

It is an amenable number.

8081725 is a deficient number, since it is larger than the sum of its proper divisors (2211639).

8081725 is a wasteful number, since it uses less digits than its factorization.

8081725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784 (or 8779 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 8081725 is about 2842.8374909586. The cubic root of 8081725 is about 200.6787356506.

The spelling of 8081725 in words is "eight million, eighty-one thousand, seven hundred twenty-five".