8251525 has 6 divisors (see below), whose sum is σ = 10231922. Its totient is φ = 6601200.

The previous prime is 8251513. The next prime is 8251541. The reversal of 8251525 is 5251528.

It can be written as a sum of positive squares in 3 ways, for example, as 54756 + 8196769 = 234^2 + 2863^2 .

It is not a de Polignac number, because 8251525 - 2⁵ = 8251493 is a prime.

It is a Duffinian number.

8251525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8251493 and 8251502.

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 5 ways as a sum of consecutive naturals, for example, 165006 + ... + 165055.

Almost surely, 2^8251525 is an apocalyptic number.

It is an amenable number.

8251525 is a deficient number, since it is larger than the sum of its proper divisors (1980397).

8251525 is a wasteful number, since it uses less digits than its factorization.

8251525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330071 (or 330066 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 8251525 is about 2872.5467794276. The cubic root of 8251525 is about 202.0744505490.

The spelling of 8251525 in words is "eight million, two hundred fifty-one thousand, five hundred twenty-five".