25231413425431 has 2 divisors, whose sum is σ = 25231413425432. Its totient is φ = 25231413425430.

The previous prime is 25231413425419. The next prime is 25231413425473. The reversal of 25231413425431 is 13452431413252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25231413425431 - 2²³ = 25231405036823 is a prime.

It is a super-2 number, since 2×25231413425431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25231413405431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12615706712715 + 12615706712716.

It is an arithmetic number, because the mean of its divisors is an integer number (12615706712716).

Almost surely, 2^{25231413425431} is an apocalyptic number.

25231413425431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25231413425431 is an equidigital number, since it uses as much as digits as its factorization.

25231413425431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 40.

Adding to 25231413425431 its reverse (13452431413252), we get a palindrome (38683844838683).

The spelling of 25231413425431 in words is "twenty-five trillion, two hundred thirty-one billion, four hundred thirteen million, four hundred twenty-five thousand, four hundred thirty-one".