13551009049 has 2 divisors, whose sum is σ = 13551009050. Its totient is φ = 13551009048.

The previous prime is 13551009047. The next prime is 13551009091. The reversal of 13551009049 is 94090015531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7631245449 + 5919763600 = 87357^2 + 76940^2 .

It is a cyclic number.

It is not a de Polignac number, because 13551009049 - 2¹ = 13551009047 is a prime.

Together with 13551009047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13551008999 and 13551009017.

It is not a weakly prime, because it can be changed into another prime (13551009041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775504524 + 6775504525.

It is an arithmetic number, because the mean of its divisors is an integer number (6775504525).

Almost surely, 2^13551009049 is an apocalyptic number.

It is an amenable number.

13551009049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551009049 is an equidigital number, since it uses as much as digits as its factorization.

13551009049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 37.

The spelling of 13551009049 in words is "thirteen billion, five hundred fifty-one million, nine thousand, forty-nine".