13405543315225 has 24 divisors (see below), whose sum is σ = 16756079986688. Its totient is φ = 10638518486400.

The previous prime is 13405543315139. The next prime is 13405543315277. The reversal of 13405543315225 is 52251334550431.

It is not a de Polignac number, because 13405543315225 - 2⁷ = 13405543315097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22955812 + ... + 23532538.

Almost surely, 2^{13405543315225} is an apocalyptic number.

It is an amenable number.

13405543315225 is a deficient number, since it is larger than the sum of its proper divisors (3350536671463).

13405543315225 is a wasteful number, since it uses less digits than its factorization.

13405543315225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584185 (or 584180 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 13405543315225 its reverse (52251334550431), we get a palindrome (65656877865656).

The spelling of 13405543315225 in words is "thirteen trillion, four hundred five billion, five hundred forty-three million, three hundred fifteen thousand, two hundred twenty-five".