25423355131 has 4 divisors (see below), whose sum is σ = 26014595992. Its totient is φ = 24832114272.

The previous prime is 25423355123. The next prime is 25423355189. The reversal of 25423355131 is 13155332452.

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 25423355131 - 2³ = 25423355123 is a prime.

It is a super-2 number, since 2×25423355131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25423355101) 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 3 ways as a sum of consecutive naturals, for example, 295620366 + ... + 295620451.

It is an arithmetic number, because the mean of its divisors is an integer number (6503648998).

Almost surely, 2^25423355131 is an apocalyptic number.

25423355131 is a deficient number, since it is larger than the sum of its proper divisors (591240861).

25423355131 is an equidigital number, since it uses as much as digits as its factorization.

25423355131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591240860.

The product of its digits is 54000, while the sum is 34.

Adding to 25423355131 its reverse (13155332452), we get a palindrome (38578687583).

The spelling of 25423355131 in words is "twenty-five billion, four hundred twenty-three million, three hundred fifty-five thousand, one hundred thirty-one".