13253330557 has 2 divisors, whose sum is σ = 13253330558. Its totient is φ = 13253330556.

The previous prime is 13253330533. The next prime is 13253330561. The reversal of 13253330557 is 75503335231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13231670841 + 21659716 = 115029^2 + 4654^2 .

It is a cyclic number.

It is not a de Polignac number, because 13253330557 - 2⁷ = 13253330429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13253330257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626665278 + 6626665279.

It is an arithmetic number, because the mean of its divisors is an integer number (6626665279).

Almost surely, 2^13253330557 is an apocalyptic number.

It is an amenable number.

13253330557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13253330557 is an equidigital number, since it uses as much as digits as its factorization.

13253330557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141750, while the sum is 37.

Adding to 13253330557 its reverse (75503335231), we get a palindrome (88756665788).

The spelling of 13253330557 in words is "thirteen billion, two hundred fifty-three million, three hundred thirty thousand, five hundred fifty-seven".