25316443 has 2 divisors, whose sum is σ = 25316444. Its totient is φ = 25316442.

The previous prime is 25316437. The next prime is 25316453. The reversal of 25316443 is 34461352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25316443 - 2²¹ = 23219291 is a prime.

It is not a weakly prime, because it can be changed into another prime (25316453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12658221 + 12658222.

It is an arithmetic number, because the mean of its divisors is an integer number (12658222).

Almost surely, 2^25316443 is an apocalyptic number.

25316443 is a deficient number, since it is larger than the sum of its proper divisors (1).

25316443 is an equidigital number, since it uses as much as digits as its factorization.

25316443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 28.

The square root of 25316443 is about 5031.5447926059. The cubic root of 25316443 is about 293.6303180473.

Adding to 25316443 its reverse (34461352), we get a palindrome (59777795).

The spelling of 25316443 in words is "twenty-five million, three hundred sixteen thousand, four hundred forty-three".