25797671 has 2 divisors, whose sum is σ = 25797672. Its totient is φ = 25797670.

The previous prime is 25797661. The next prime is 25797677. The reversal of 25797671 is 17679752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25797671 - 2¹⁰ = 25796647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25797677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12898835 + 12898836.

It is an arithmetic number, because the mean of its divisors is an integer number (12898836).

Almost surely, 2^25797671 is an apocalyptic number.

25797671 is a deficient number, since it is larger than the sum of its proper divisors (1).

25797671 is an equidigital number, since it uses as much as digits as its factorization.

25797671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 185220, while the sum is 44.

The square root of 25797671 is about 5079.1407737924. The cubic root of 25797671 is about 295.4791447361.

The spelling of 25797671 in words is "twenty-five million, seven hundred ninety-seven thousand, six hundred seventy-one".