25452143 has 2 divisors, whose sum is σ = 25452144. Its totient is φ = 25452142.

The previous prime is 25452139. The next prime is 25452149. The reversal of 25452143 is 34125452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25452143 - 2² = 25452139 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25452149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12726071 + 12726072.

It is an arithmetic number, because the mean of its divisors is an integer number (12726072).

Almost surely, 2^25452143 is an apocalyptic number.

25452143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25452143 is an equidigital number, since it uses as much as digits as its factorization.

25452143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 26.

The square root of 25452143 is about 5045.0116947337. The cubic root of 25452143 is about 294.1540179014.

Adding to 25452143 its reverse (34125452), we get a palindrome (59577595).

The spelling of 25452143 in words is "twenty-five million, four hundred fifty-two thousand, one hundred forty-three".