25943 has 2 divisors, whose sum is σ = 25944. Its totient is φ = 25942.

The previous prime is 25939. The next prime is 25951. The reversal of 25943 is 34952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25943 - 2² = 25939 is a prime.

It is a Chen prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12971 + 12972.

It is an arithmetic number, because the mean of its divisors is an integer number (12972).

2²⁵⁹⁴³ is an apocalyptic number.

25943 is a deficient number, since it is larger than the sum of its proper divisors (1).

25943 is an equidigital number, since it uses as much as digits as its factorization.

25943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 25943 is about 161.0683084905. The cubic root of 25943 is about 29.6032958346.

Subtracting 25943 from its reverse (34952), we obtain a palindrome (9009).

The spelling of 25943 in words is "twenty-five thousand, nine hundred forty-three".