25703243 has 2 divisors, whose sum is σ = 25703244. Its totient is φ = 25703242.

The previous prime is 25703239. The next prime is 25703261. The reversal of 25703243 is 34230752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25703243 - 2² = 25703239 is a prime.

It is not a weakly prime, because it can be changed into another prime (25703273) 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, 12851621 + 12851622.

It is an arithmetic number, because the mean of its divisors is an integer number (12851622).

Almost surely, 2^25703243 is an apocalyptic number.

25703243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25703243 is an equidigital number, since it uses as much as digits as its factorization.

25703243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 25703243 is about 5069.8365851376. The cubic root of 25703243 is about 295.1181868679.

Adding to 25703243 its reverse (34230752), we get a palindrome (59933995).

The spelling of 25703243 in words is "twenty-five million, seven hundred three thousand, two hundred forty-three".