8356702225 has 27 divisors (see below), whose sum is σ = 10614763537. Its totient is φ = 6526299680.

The previous prime is 8356702219. The next prime is 8356702261. The reversal of 8356702225 is 5222076538.

The square root of 8356702225 is 91415.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1389127441 + 6967574784 = 37271^2 + 83472^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8356702225 is a prime.

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 26 ways as a sum of consecutive naturals, for example, 21482331 + ... + 21482719.

Almost surely, 2^8356702225 is an apocalyptic number.

8356702225 is the 91415-th square number.

8356702225 is the 45708-th centered octagonal number.

It is an amenable number.

8356702225 is a deficient number, since it is larger than the sum of its proper divisors (2258061312).

8356702225 is an frugal number, since it uses more digits than its factorization.

8356702225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The cubic root of 8356702225 is about 2029.2940207281.

The spelling of 8356702225 in words is "eight billion, three hundred fifty-six million, seven hundred two thousand, two hundred twenty-five".