13525235447 has 2 divisors, whose sum is σ = 13525235448. Its totient is φ = 13525235446.

The previous prime is 13525235419. The next prime is 13525235473. The reversal of 13525235447 is 74453252531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13525235447 - 2¹⁰ = 13525234423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525235407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762617723 + 6762617724.

It is an arithmetic number, because the mean of its divisors is an integer number (6762617724).

Almost surely, 2^13525235447 is an apocalyptic number.

13525235447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525235447 is an equidigital number, since it uses as much as digits as its factorization.

13525235447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 41.

Adding to 13525235447 its reverse (74453252531), we get a palindrome (87978487978).

The spelling of 13525235447 in words is "thirteen billion, five hundred twenty-five million, two hundred thirty-five thousand, four hundred forty-seven".