25914631 has 2 divisors, whose sum is σ = 25914632. Its totient is φ = 25914630.

The previous prime is 25914601. The next prime is 25914643. The reversal of 25914631 is 13641952.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25914631 is a prime.

It is a super-2 number, since 2×25914631² = 1343136199732322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25914593 and 25914602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25914601) 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, 12957315 + 12957316.

It is an arithmetic number, because the mean of its divisors is an integer number (12957316).

Almost surely, 2^25914631 is an apocalyptic number.

25914631 is a deficient number, since it is larger than the sum of its proper divisors (1).

25914631 is an equidigital number, since it uses as much as digits as its factorization.

25914631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 25914631 is about 5090.6415116368. The cubic root of 25914631 is about 295.9250137237.

The spelling of 25914631 in words is "twenty-five million, nine hundred fourteen thousand, six hundred thirty-one".