8040825 has 36 divisors (see below), whose sum is σ = 15515500. Its totient is φ = 3957120.

The previous prime is 8040817. The next prime is 8040827. The reversal of 8040825 is 5280408.

It can be written as a sum of positive squares in 6 ways, for example, as 2223081 + 5817744 = 1491^2 + 2412^2 .

It is not a de Polignac number, because 8040825 - 2³ = 8040817 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8040827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1551 + ... + 4299.

Almost surely, 2^8040825 is an apocalyptic number.

It is an amenable number.

8040825 is a deficient number, since it is larger than the sum of its proper divisors (7474675).

8040825 is a wasteful number, since it uses less digits than its factorization.

8040825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8040825 is about 2835.6348495531. The cubic root of 8040825 is about 200.3396312599.

The spelling of 8040825 in words is "eight million, forty thousand, eight hundred twenty-five".