25511423411243 has 24 divisors (see below), whose sum is σ = 32378857890624. Its totient is φ = 19876307614800.

The previous prime is 25511423411189. The next prime is 25511423411281. The reversal of 25511423411243 is 34211432411552.

It is not a de Polignac number, because 25511423411243 - 2⁶ = 25511423411179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25511423411197 and 25511423411206.

It is not an unprimeable number, because it can be changed into a prime (25511423411843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699728 + ... + 7177218.

It is an arithmetic number, because the mean of its divisors is an integer number (1349119078776).

Almost surely, 2^{25511423411243} is an apocalyptic number.

25511423411243 is a deficient number, since it is larger than the sum of its proper divisors (6867434479381).

25511423411243 is a wasteful number, since it uses less digits than its factorization.

25511423411243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484823 (or 6484816 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

Adding to 25511423411243 its reverse (34211432411552), we get a palindrome (59722855822795).

The spelling of 25511423411243 in words is "twenty-five trillion, five hundred eleven billion, four hundred twenty-three million, four hundred eleven thousand, two hundred forty-three".