13355257 has 2 divisors, whose sum is σ = 13355258. Its totient is φ = 13355256.

The previous prime is 13355231. The next prime is 13355263. The reversal of 13355257 is 75255331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8386816 + 4968441 = 2896^2 + 2229^2 .

It is an emirp because it is prime and its reverse (75255331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13355257 - 2¹¹ = 13353209 is a prime.

It is not a weakly prime, because it can be changed into another prime (13355227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6677628 + 6677629.

It is an arithmetic number, because the mean of its divisors is an integer number (6677629).

Almost surely, 2^13355257 is an apocalyptic number.

It is an amenable number.

13355257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13355257 is an equidigital number, since it uses as much as digits as its factorization.

13355257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15750, while the sum is 31.

The square root of 13355257 is about 3654.4845053714. The cubic root of 13355257 is about 237.2561160359.

The spelling of 13355257 in words is "thirteen million, three hundred fifty-five thousand, two hundred fifty-seven".