5263221289 has 2 divisors, whose sum is σ = 5263221290. Its totient is φ = 5263221288.

The previous prime is 5263221283. The next prime is 5263221311. The reversal of 5263221289 is 9821223625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4775915664 + 487305625 = 69108^2 + 22075^2 .

It is a cyclic number.

It is not a de Polignac number, because 5263221289 - 2⁹ = 5263220777 is a prime.

It is not a weakly prime, because it can be changed into another prime (5263221283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631610644 + 2631610645.

It is an arithmetic number, because the mean of its divisors is an integer number (2631610645).

Almost surely, 2^5263221289 is an apocalyptic number.

It is an amenable number.

5263221289 is a deficient number, since it is larger than the sum of its proper divisors (1).

5263221289 is an equidigital number, since it uses as much as digits as its factorization.

5263221289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 5263221289 is about 72548.0619244925. The cubic root of 5263221289 is about 1739.4710693576.

The spelling of 5263221289 in words is "five billion, two hundred sixty-three million, two hundred twenty-one thousand, two hundred eighty-nine".