25513111115345 has 16 divisors (see below), whose sum is σ = 34989575823360. Its totient is φ = 17494621617984.

The previous prime is 25513111115329. The next prime is 25513111115407. The reversal of 25513111115345 is 54351111131552.

It is not a de Polignac number, because 25513111115345 - 2⁴ = 25513111115329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25513111115299 and 25513111115308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6256091 + ... + 9495519.

It is an arithmetic number, because the mean of its divisors is an integer number (2186848488960).

Almost surely, 2^{25513111115345} is an apocalyptic number.

It is an amenable number.

25513111115345 is a deficient number, since it is larger than the sum of its proper divisors (9476464708015).

25513111115345 is a wasteful number, since it uses less digits than its factorization.

25513111115345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464464.

The product of its digits is 45000, while the sum is 38.

Adding to 25513111115345 its reverse (54351111131552), we get a palindrome (79864222246897).

The spelling of 25513111115345 in words is "twenty-five trillion, five hundred thirteen billion, one hundred eleven million, one hundred fifteen thousand, three hundred forty-five".