25263143 has 2 divisors, whose sum is σ = 25263144. Its totient is φ = 25263142.

The previous prime is 25263137. The next prime is 25263157. The reversal of 25263143 is 34136252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25263143 - 2²⁴ = 8485927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25263113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631571 + 12631572.

It is an arithmetic number, because the mean of its divisors is an integer number (12631572).

Almost surely, 2^25263143 is an apocalyptic number.

25263143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25263143 is an equidigital number, since it uses as much as digits as its factorization.

25263143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 25263143 is about 5026.2454178044. The cubic root of 25263143 is about 293.4241082982.

Adding to 25263143 its reverse (34136252), we get a palindrome (59399395).

The spelling of 25263143 in words is "twenty-five million, two hundred sixty-three thousand, one hundred forty-three".