5263689493 has 2 divisors, whose sum is σ = 5263689494. Its totient is φ = 5263689492.

The previous prime is 5263689479. The next prime is 5263689517. The reversal of 5263689493 is 3949863625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4058072209 + 1205617284 = 63703^2 + 34722^2 .

It is a cyclic number.

It is not a de Polignac number, because 5263689493 - 2⁹ = 5263688981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5263689433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631844746 + 2631844747.

It is an arithmetic number, because the mean of its divisors is an integer number (2631844747).

Almost surely, 2^5263689493 is an apocalyptic number.

It is an amenable number.

5263689493 is a deficient number, since it is larger than the sum of its proper divisors (1).

5263689493 is an equidigital number, since it uses as much as digits as its factorization.

5263689493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8398080, while the sum is 55.

The square root of 5263689493 is about 72551.2887066798. The cubic root of 5263689493 is about 1739.5226476034.

It can be divided in two parts, 52636 and 89493, that added together give a square (142129 = 377²).

The spelling of 5263689493 in words is "five billion, two hundred sixty-three million, six hundred eighty-nine thousand, four hundred ninety-three".