8259725 has 6 divisors (see below), whose sum is σ = 10242090. Its totient is φ = 6607760.

The previous prime is 8259703. The next prime is 8259743. The reversal of 8259725 is 5279528.

It can be written as a sum of positive squares in 3 ways, for example, as 964324 + 7295401 = 982^2 + 2701^2 .

It is not a de Polignac number, because 8259725 - 2¹² = 8255629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165170 + ... + 165219.

It is an arithmetic number, because the mean of its divisors is an integer number (1707015).

Almost surely, 2^8259725 is an apocalyptic number.

It is an amenable number.

8259725 is a deficient number, since it is larger than the sum of its proper divisors (1982365).

8259725 is a wasteful number, since it uses less digits than its factorization.

8259725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330399 (or 330394 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 8259725 is about 2873.9737298730. The cubic root of 8259725 is about 202.1413659337.

The spelling of 8259725 in words is "eight million, two hundred fifty-nine thousand, seven hundred twenty-five".