8709555625 has 15 divisors (see below), whose sum is σ = 10886376963. Its totient is φ = 6965778000.

The previous prime is 8709555619. The next prime is 8709555641. The reversal of 8709555625 is 5265559078.

The square root of 8709555625 is 93325.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 6327725209 + 2381830416 = 79547^2 + 48804^2 .

It is not a de Polignac number, because 8709555625 - 2⁵ = 8709555593 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian 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 14 ways as a sum of consecutive naturals, for example, 2331259 + ... + 2334991.

Almost surely, 2^8709555625 is an apocalyptic number.

8709555625 is the 93325-th square number.

8709555625 is the 46663-rd centered octagonal number.

It is an amenable number.

8709555625 is a deficient number, since it is larger than the sum of its proper divisors (2176821338).

8709555625 is an frugal number, since it uses more digits than its factorization.

8709555625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7486 (or 3738 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 52.

The cubic root of 8709555625 is about 2057.4628349669.

The spelling of 8709555625 in words is "eight billion, seven hundred nine million, five hundred fifty-five thousand, six hundred twenty-five".