13266551 has 2 divisors, whose sum is σ = 13266552. Its totient is φ = 13266550.

The previous prime is 13266529. The next prime is 13266553. The reversal of 13266551 is 15566231.

It is a strong prime.

It is an emirp because it is prime and its reverse (15566231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13266551 - 2²² = 9072247 is a prime.

It is a Sophie Germain prime.

Together with 13266553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13266553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6633275 + 6633276.

It is an arithmetic number, because the mean of its divisors is an integer number (6633276).

Almost surely, 2^13266551 is an apocalyptic number.

13266551 is a deficient number, since it is larger than the sum of its proper divisors (1).

13266551 is an equidigital number, since it uses as much as digits as its factorization.

13266551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 13266551 is about 3642.3276898160. The cubic root of 13266551 is about 236.7296614252.

The spelling of 13266551 in words is "thirteen million, two hundred sixty-six thousand, five hundred fifty-one".