8252369981 has 2 divisors, whose sum is σ = 8252369982. Its totient is φ = 8252369980.

The previous prime is 8252369953. The next prime is 8252370011. The reversal of 8252369981 is 1899632528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7887216100 + 365153881 = 88810^2 + 19109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8252369981 is a prime.

It is a super-2 number, since 2×8252369981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8252369581) 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, 4126184990 + 4126184991.

It is an arithmetic number, because the mean of its divisors is an integer number (4126184991).

Almost surely, 2^8252369981 is an apocalyptic number.

It is an amenable number.

8252369981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8252369981 is an equidigital number, since it uses as much as digits as its factorization.

8252369981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 8252369981 is about 90842.5560021293. The cubic root of 8252369981 is about 2020.8134799088.

The spelling of 8252369981 in words is "eight billion, two hundred fifty-two million, three hundred sixty-nine thousand, nine hundred eighty-one".