25458131 has 2 divisors, whose sum is σ = 25458132. Its totient is φ = 25458130.

The previous prime is 25458127. The next prime is 25458133. The reversal of 25458131 is 13185452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25458131 - 2² = 25458127 is a prime.

It is a super-2 number, since 2×25458131² = 1296232868026322, which contains 22 as substring.

Together with 25458133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25458094 and 25458103.

It is not a weakly prime, because it can be changed into another prime (25458133) 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, 12729065 + 12729066.

It is an arithmetic number, because the mean of its divisors is an integer number (12729066).

Almost surely, 2^25458131 is an apocalyptic number.

25458131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25458131 is an equidigital number, since it uses as much as digits as its factorization.

25458131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

The square root of 25458131 is about 5045.6051173274. The cubic root of 25458131 is about 294.1770841470.

It can be divided in two parts, 254 and 58131, that added together give a palindrome (58385).

The spelling of 25458131 in words is "twenty-five million, four hundred fifty-eight thousand, one hundred thirty-one".