5261700217 has 2 divisors, whose sum is σ = 5261700218. Its totient is φ = 5261700216.

The previous prime is 5261700137. The next prime is 5261700233. The reversal of 5261700217 is 7120071625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4980266041 + 281434176 = 70571^2 + 16776^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261700217 - 2¹⁵ = 5261667449 is a prime.

It is not a weakly prime, because it can be changed into another prime (5261700287) 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, 2630850108 + 2630850109.

It is an arithmetic number, because the mean of its divisors is an integer number (2630850109).

Almost surely, 2^5261700217 is an apocalyptic number.

It is an amenable number.

5261700217 is a deficient number, since it is larger than the sum of its proper divisors (1).

5261700217 is an equidigital number, since it uses as much as digits as its factorization.

5261700217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 5261700217 is about 72537.5779648039. The cubic root of 5261700217 is about 1739.3034840507.

The spelling of 5261700217 in words is "five billion, two hundred sixty-one million, seven hundred thousand, two hundred seventeen".