25711373231 has 4 divisors (see below), whose sum is σ = 25823650200. Its totient is φ = 25599096264.

The previous prime is 25711373227. The next prime is 25711373251. The reversal of 25711373231 is 13237311752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25711373231 - 2² = 25711373227 is a prime.

It is a super-2 number, since 2×25711373231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25711373191 and 25711373200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25711373201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56138141 + ... + 56138598.

It is an arithmetic number, because the mean of its divisors is an integer number (6455912550).

Almost surely, 2^25711373231 is an apocalyptic number.

25711373231 is a deficient number, since it is larger than the sum of its proper divisors (112276969).

25711373231 is a wasteful number, since it uses less digits than its factorization.

25711373231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112276968.

The product of its digits is 26460, while the sum is 35.

Adding to 25711373231 its reverse (13237311752), we get a palindrome (38948684983).

The spelling of 25711373231 in words is "twenty-five billion, seven hundred eleven million, three hundred seventy-three thousand, two hundred thirty-one".