8117525 has 12 divisors (see below), whose sum is σ = 10840452. Its totient is φ = 5994240.

The previous prime is 8117521. The next prime is 8117537. The reversal of 8117525 is 5257118.

It can be written as a sum of positive squares in 6 ways, for example, as 3073009 + 5044516 = 1753^2 + 2246^2 .

It is not a de Polignac number, because 8117525 - 2² = 8117521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8117521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12164 + ... + 12813.

It is an arithmetic number, because the mean of its divisors is an integer number (903371).

Almost surely, 2^8117525 is an apocalyptic number.

It is an amenable number.

8117525 is a deficient number, since it is larger than the sum of its proper divisors (2722927).

8117525 is a wasteful number, since it uses less digits than its factorization.

8117525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25000 (or 24995 counting only the distinct ones).

The product of its digits is 2800, while the sum is 29.

The square root of 8117525 is about 2849.1270592938. The cubic root of 8117525 is about 200.9746178851.

The spelling of 8117525 in words is "eight million, one hundred seventeen thousand, five hundred twenty-five".