8250566281 has 2 divisors, whose sum is σ = 8250566282. Its totient is φ = 8250566280.

The previous prime is 8250566267. The next prime is 8250566297. The reversal of 8250566281 is 1826650528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4393038400 + 3857527881 = 66280^2 + 62109^2 .

It is a cyclic number.

It is not a de Polignac number, because 8250566281 - 2¹⁵ = 8250533513 is a prime.

It is a super-2 number, since 2×8250566281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8250566201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4125283140 + 4125283141.

It is an arithmetic number, because the mean of its divisors is an integer number (4125283141).

Almost surely, 2^8250566281 is an apocalyptic number.

It is an amenable number.

8250566281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8250566281 is an equidigital number, since it uses as much as digits as its factorization.

8250566281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 8250566281 is about 90832.6278437435. The cubic root of 8250566281 is about 2020.6662411208. Note that the first 3 decimals are identical.

The spelling of 8250566281 in words is "eight billion, two hundred fifty million, five hundred sixty-six thousand, two hundred eighty-one".