25313447 has 2 divisors, whose sum is σ = 25313448. Its totient is φ = 25313446.

The previous prime is 25313437. The next prime is 25313503. The reversal of 25313447 is 74431352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25313447 - 2⁸ = 25313191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25313437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12656723 + 12656724.

It is an arithmetic number, because the mean of its divisors is an integer number (12656724).

Almost surely, 2^25313447 is an apocalyptic number.

25313447 is a deficient number, since it is larger than the sum of its proper divisors (1).

25313447 is an equidigital number, since it uses as much as digits as its factorization.

25313447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 25313447 is about 5031.2470621109. The cubic root of 25313447 is about 293.6187346515.

Adding to 25313447 its reverse (74431352), we get a palindrome (99744799).

The spelling of 25313447 in words is "twenty-five million, three hundred thirteen thousand, four hundred forty-seven".