8260550021 has 2 divisors, whose sum is σ = 8260550022. Its totient is φ = 8260550020.

The previous prime is 8260549967. The next prime is 8260550047. The reversal of 8260550021 is 1200550628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7553521921 + 707028100 = 86911^2 + 26590^2 .

It is a cyclic number.

It is not a de Polignac number, because 8260550021 - 2²² = 8256355717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8260550321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4130275010 + 4130275011.

It is an arithmetic number, because the mean of its divisors is an integer number (4130275011).

Almost surely, 2^8260550021 is an apocalyptic number.

It is an amenable number.

8260550021 is a deficient number, since it is larger than the sum of its proper divisors (1).

8260550021 is an equidigital number, since it uses as much as digits as its factorization.

8260550021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 8260550021 is about 90887.5680222548. The cubic root of 8260550021 is about 2021.4809599307.

The spelling of 8260550021 in words is "eight billion, two hundred sixty million, five hundred fifty thousand, twenty-one".