13550291 has 2 divisors, whose sum is σ = 13550292. Its totient is φ = 13550290.

The previous prime is 13550269. The next prime is 13550297. The reversal of 13550291 is 19205531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13550291 - 2¹⁰ = 13549267 is a prime.

It is a super-2 number, since 2×13550291² = 367220772369362, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13550291.

It is not a weakly prime, because it can be changed into another prime (13550297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775145 + 6775146.

It is an arithmetic number, because the mean of its divisors is an integer number (6775146).

Almost surely, 2^13550291 is an apocalyptic number.

13550291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550291 is an equidigital number, since it uses as much as digits as its factorization.

13550291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 13550291 is about 3681.0719906027. The cubic root of 13550291 is about 238.4054654224.

The spelling of 13550291 in words is "thirteen million, five hundred fifty thousand, two hundred ninety-one".