25235543 has 2 divisors, whose sum is σ = 25235544. Its totient is φ = 25235542.

The previous prime is 25235527. The next prime is 25235549. The reversal of 25235543 is 34553252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25235543 - 2⁴ = 25235527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25235549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12617771 + 12617772.

It is an arithmetic number, because the mean of its divisors is an integer number (12617772).

Almost surely, 2^25235543 is an apocalyptic number.

25235543 is a deficient number, since it is larger than the sum of its proper divisors (1).

25235543 is an equidigital number, since it uses as much as digits as its factorization.

25235543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 29.

The square root of 25235543 is about 5023.4990793271. The cubic root of 25235543 is about 293.3172140190.

Adding to 25235543 its reverse (34553252), we get a palindrome (59788795).

The spelling of 25235543 in words is "twenty-five million, two hundred thirty-five thousand, five hundred forty-three".