8272599521 has 2 divisors, whose sum is σ = 8272599522. Its totient is φ = 8272599520.

The previous prime is 8272599463. The next prime is 8272599529. The reversal of 8272599521 is 1259952728.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7107333025 + 1165266496 = 84305^2 + 34136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8272599521 is a prime.

It is a super-3 number, since 3×8272599521³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8272599521.

It is not a weakly prime, because it can be changed into another prime (8272599529) 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, 4136299760 + 4136299761.

It is an arithmetic number, because the mean of its divisors is an integer number (4136299761).

Almost surely, 2^8272599521 is an apocalyptic number.

It is an amenable number.

8272599521 is a deficient number, since it is larger than the sum of its proper divisors (1).

8272599521 is an equidigital number, since it uses as much as digits as its factorization.

8272599521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 50.

The square root of 8272599521 is about 90953.8318104301. The cubic root of 8272599521 is about 2022.4633804282.

The spelling of 8272599521 in words is "eight billion, two hundred seventy-two million, five hundred ninety-nine thousand, five hundred twenty-one".