13551799 has 2 divisors, whose sum is σ = 13551800. Its totient is φ = 13551798.

The previous prime is 13551779. The next prime is 13551803. The reversal of 13551799 is 99715531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13551799 - 2¹¹ = 13549751 is a prime.

It is a super-2 number, since 2×13551799² = 367302512272802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13551719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775899 + 6775900.

It is an arithmetic number, because the mean of its divisors is an integer number (6775900).

Almost surely, 2^13551799 is an apocalyptic number.

13551799 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551799 is an equidigital number, since it uses as much as digits as its factorization.

13551799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42525, while the sum is 40.

The square root of 13551799 is about 3681.2768165407. The cubic root of 13551799 is about 238.4143090727.

The spelling of 13551799 in words is "thirteen million, five hundred fifty-one thousand, seven hundred ninety-nine".