25131404327 has 2 divisors, whose sum is σ = 25131404328. Its totient is φ = 25131404326.

The previous prime is 25131404279. The next prime is 25131404359. The reversal of 25131404327 is 72340413152.

It is an a-pointer prime, because the next prime (25131404359) can be obtained adding 25131404327 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25131404327 - 2⁸ = 25131404071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25131404293 and 25131404302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25131404377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565702163 + 12565702164.

It is an arithmetic number, because the mean of its divisors is an integer number (12565702164).

Almost surely, 2^25131404327 is an apocalyptic number.

25131404327 is a deficient number, since it is larger than the sum of its proper divisors (1).

25131404327 is an equidigital number, since it uses as much as digits as its factorization.

25131404327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 25131404327 its reverse (72340413152), we get a palindrome (97471817479).

The spelling of 25131404327 in words is "twenty-five billion, one hundred thirty-one million, four hundred four thousand, three hundred twenty-seven".