13525250549 has 2 divisors, whose sum is σ = 13525250550. Its totient is φ = 13525250548.

The previous prime is 13525250539. The next prime is 13525250551. The reversal of 13525250549 is 94505252531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12604552900 + 920697649 = 112270^2 + 30343^2 .

It is a cyclic number.

It is not a de Polignac number, because 13525250549 - 2¹² = 13525246453 is a prime.

Together with 13525250551, 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 (13525250539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762625274 + 6762625275.

It is an arithmetic number, because the mean of its divisors is an integer number (6762625275).

Almost surely, 2^13525250549 is an apocalyptic number.

It is an amenable number.

13525250549 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525250549 is an equidigital number, since it uses as much as digits as its factorization.

13525250549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 13525250549 in words is "thirteen billion, five hundred twenty-five million, two hundred fifty thousand, five hundred forty-nine".