13405253 has 2 divisors, whose sum is σ = 13405254. Its totient is φ = 13405252.

The previous prime is 13405243. The next prime is 13405261. The reversal of 13405253 is 35250431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 717409 = 3562^2 + 847^2 .

It is an emirp because it is prime and its reverse (35250431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13405253 - 2²⁰ = 12356677 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 (13405243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702626 + 6702627.

It is an arithmetic number, because the mean of its divisors is an integer number (6702627).

Almost surely, 2^13405253 is an apocalyptic number.

It is an amenable number.

13405253 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405253 is an equidigital number, since it uses as much as digits as its factorization.

13405253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13405253 is about 3661.3184783627. The cubic root of 13405253 is about 237.5518069808.

Adding to 13405253 its reverse (35250431), we get a palindrome (48655684).

The spelling of 13405253 in words is "thirteen million, four hundred five thousand, two hundred fifty-three".