13520554049 has 2 divisors, whose sum is σ = 13520554050. Its totient is φ = 13520554048.

The previous prime is 13520554039. The next prime is 13520554063. The reversal of 13520554049 is 94045502531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6964737025 + 6555817024 = 83455^2 + 80968^2 .

It is an emirp because it is prime and its reverse (94045502531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13520554049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13520554039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760277024 + 6760277025.

It is an arithmetic number, because the mean of its divisors is an integer number (6760277025).

Almost surely, 2^13520554049 is an apocalyptic number.

It is an amenable number.

13520554049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13520554049 is an equidigital number, since it uses as much as digits as its factorization.

13520554049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 13520554049 in words is "thirteen billion, five hundred twenty million, five hundred fifty-four thousand, forty-nine".