25244143 has 2 divisors, whose sum is σ = 25244144. Its totient is φ = 25244142.

The previous prime is 25244129. The next prime is 25244147. The reversal of 25244143 is 34144252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25244143 - 2⁵ = 25244111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25244147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12622071 + 12622072.

It is an arithmetic number, because the mean of its divisors is an integer number (12622072).

Almost surely, 2^25244143 is an apocalyptic number.

25244143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25244143 is an equidigital number, since it uses as much as digits as its factorization.

25244143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 25.

The square root of 25244143 is about 5024.3549834780. The cubic root of 25244143 is about 293.3505300123.

Adding to 25244143 its reverse (34144252), we get a palindrome (59388395).

The spelling of 25244143 in words is "twenty-five million, two hundred forty-four thousand, one hundred forty-three".