5266521173 has 2 divisors, whose sum is σ = 5266521174. Its totient is φ = 5266521172.

The previous prime is 5266521151. The next prime is 5266521223. The reversal of 5266521173 is 3711256625.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4741286449 + 525234724 = 68857^2 + 22918^2 .

It is a cyclic number.

It is not a de Polignac number, because 5266521173 - 2⁶ = 5266521109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5266521373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2633260586 + 2633260587.

It is an arithmetic number, because the mean of its divisors is an integer number (2633260587).

Almost surely, 2^5266521173 is an apocalyptic number.

It is an amenable number.

5266521173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5266521173 is an equidigital number, since it uses as much as digits as its factorization.

5266521173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 5266521173 is about 72570.8011048521. The cubic root of 5266521173 is about 1739.8345257048.

Adding to 5266521173 its reverse (3711256625), we get a palindrome (8977777798).

The spelling of 5266521173 in words is "five billion, two hundred sixty-six million, five hundred twenty-one thousand, one hundred seventy-three".