13525255109 has 2 divisors, whose sum is σ = 13525255110. Its totient is φ = 13525255108.

The previous prime is 13525255069. The next prime is 13525255153. The reversal of 13525255109 is 90155252531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9105930625 + 4419324484 = 95425^2 + 66478^2 .

It is a cyclic number.

It is not a de Polignac number, because 13525255109 - 2¹² = 13525251013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525255309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762627554 + 6762627555.

It is an arithmetic number, because the mean of its divisors is an integer number (6762627555).

Almost surely, 2^13525255109 is an apocalyptic number.

It is an amenable number.

13525255109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525255109 is an equidigital number, since it uses as much as digits as its factorization.

13525255109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 13525255109 in words is "thirteen billion, five hundred twenty-five million, two hundred fifty-five thousand, one hundred nine".