8652725981 has 2 divisors, whose sum is σ = 8652725982. Its totient is φ = 8652725980.

The previous prime is 8652725957. The next prime is 8652726001. The reversal of 8652725981 is 1895272568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5663917081 + 2988808900 = 75259^2 + 54670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8652725981 is a prime.

It is a super-2 number, since 2×8652725981² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8652725581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4326362990 + 4326362991.

It is an arithmetic number, because the mean of its divisors is an integer number (4326362991).

Almost surely, 2^8652725981 is an apocalyptic number.

It is an amenable number.

8652725981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8652725981 is an equidigital number, since it uses as much as digits as its factorization.

8652725981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 53.

The square root of 8652725981 is about 93020.0299989201. The cubic root of 8652725981 is about 2052.9781011070.

The spelling of 8652725981 in words is "eight billion, six hundred fifty-two million, seven hundred twenty-five thousand, nine hundred eighty-one".