8625725 has 12 divisors (see below), whose sum is σ = 10809204. Its totient is φ = 6827520.

The previous prime is 8625709. The next prime is 8625733. The reversal of 8625725 is 5275268.

It can be written as a sum of positive squares in 6 ways, for example, as 1194649 + 7431076 = 1093^2 + 2726^2 .

It is not a de Polignac number, because 8625725 - 2⁴ = 8625709 is a prime.

It is a Duffinian number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 647 + ... + 4203.

It is an arithmetic number, because the mean of its divisors is an integer number (900767).

Almost surely, 2^8625725 is an apocalyptic number.

It is an amenable number.

8625725 is a deficient number, since it is larger than the sum of its proper divisors (2183479).

8625725 is a wasteful number, since it uses less digits than its factorization.

8625725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664 (or 3659 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 8625725 is about 2936.9584607209. The cubic root of 8625725 is about 205.0840424793.

The spelling of 8625725 in words is "eight million, six hundred twenty-five thousand, seven hundred twenty-five".