8506725 has 24 divisors (see below), whose sum is σ = 14216352. Its totient is φ = 4488000.

The previous prime is 8506717. The next prime is 8506759. The reversal of 8506725 is 5276058.

It is a happy number.

It is not a de Polignac number, because 8506725 - 2³ = 8506717 is a prime.

8506725 is a lucky number.

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 23 ways as a sum of consecutive naturals, for example, 7014 + ... + 8136.

It is an arithmetic number, because the mean of its divisors is an integer number (592348).

Almost surely, 2^8506725 is an apocalyptic number.

It is an amenable number.

8506725 is a deficient number, since it is larger than the sum of its proper divisors (5709627).

8506725 is a wasteful number, since it uses less digits than its factorization.

8506725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 8506725 is about 2916.6290473764. The cubic root of 8506725 is about 204.1365627325.

The spelling of 8506725 in words is "eight million, five hundred six thousand, seven hundred twenty-five".