8247050261 has 2 divisors, whose sum is σ = 8247050262. Its totient is φ = 8247050260.

The previous prime is 8247050237. The next prime is 8247050291. The reversal of 8247050261 is 1620507428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4624816036 + 3622234225 = 68006^2 + 60185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8247050261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8247050221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4123525130 + 4123525131.

It is an arithmetic number, because the mean of its divisors is an integer number (4123525131).

Almost surely, 2^8247050261 is an apocalyptic number.

It is an amenable number.

8247050261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8247050261 is an equidigital number, since it uses as much as digits as its factorization.

8247050261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8247050261 is about 90813.2713924567. The cubic root of 8247050261 is about 2020.3791613355.

Adding to 8247050261 its reverse (1620507428), we get a palindrome (9867557689).

The spelling of 8247050261 in words is "eight billion, two hundred forty-seven million, fifty thousand, two hundred sixty-one".