8162825425 has 6 divisors (see below), whose sum is σ = 10121903558. Its totient is φ = 6530260320.

The previous prime is 8162825389. The next prime is 8162825441. The reversal of 8162825425 is 5245282618.

It can be written as a sum of positive squares in 3 ways, for example, as 140398801 + 8022426624 = 11849^2 + 89568^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8162825425 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 (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163256484 + ... + 163256533.

Almost surely, 2^8162825425 is an apocalyptic number.

It is an amenable number.

8162825425 is a deficient number, since it is larger than the sum of its proper divisors (1959078133).

8162825425 is a wasteful number, since it uses less digits than its factorization.

8162825425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326513027 (or 326513022 counting only the distinct ones).

The product of its digits is 307200, while the sum is 43.

The square root of 8162825425 is about 90348.3559617993. The cubic root of 8162825425 is about 2013.4777564379.

The spelling of 8162825425 in words is "eight billion, one hundred sixty-two million, eight hundred twenty-five thousand, four hundred twenty-five".