25371131 has 2 divisors, whose sum is σ = 25371132. Its totient is φ = 25371130.

The previous prime is 25371119. The next prime is 25371187. The reversal of 25371131 is 13117352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25371131 - 2⁶ = 25371067 is a prime.

It is a super-2 number, since 2×25371131² = 1287388576438322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25371097 and 25371106.

It is not a weakly prime, because it can be changed into another prime (25371431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12685565 + 12685566.

It is an arithmetic number, because the mean of its divisors is an integer number (12685566).

Almost surely, 2^25371131 is an apocalyptic number.

25371131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25371131 is an equidigital number, since it uses as much as digits as its factorization.

25371131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 23.

The square root of 25371131 is about 5036.9763747709. The cubic root of 25371131 is about 293.8415971482.

Adding to 25371131 its reverse (13117352), we get a palindrome (38488483).

The spelling of 25371131 in words is "twenty-five million, three hundred seventy-one thousand, one hundred thirty-one".