25319143 has 2 divisors, whose sum is σ = 25319144. Its totient is φ = 25319142.

The previous prime is 25319141. The next prime is 25319167. The reversal of 25319143 is 34191352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25319143 - 2¹ = 25319141 is a prime.

Together with 25319141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25319141) 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, 12659571 + 12659572.

It is an arithmetic number, because the mean of its divisors is an integer number (12659572).

Almost surely, 2^25319143 is an apocalyptic number.

25319143 is a deficient number, since it is larger than the sum of its proper divisors (1).

25319143 is an equidigital number, since it uses as much as digits as its factorization.

25319143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 25319143 is about 5031.8130927132. The cubic root of 25319143 is about 293.6407562393.

The spelling of 25319143 in words is "twenty-five million, three hundred nineteen thousand, one hundred forty-three".