25244047 has 2 divisors, whose sum is σ = 25244048. Its totient is φ = 25244046.

The previous prime is 25244033. The next prime is 25244071. The reversal of 25244047 is 74044252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25244047 - 2¹¹ = 25241999 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12622023 + 12622024.

It is an arithmetic number, because the mean of its divisors is an integer number (12622024).

Almost surely, 2^25244047 is an apocalyptic number.

25244047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25244047 is an equidigital number, since it uses as much as digits as its factorization.

25244047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 25244047 is about 5024.3454300038. The cubic root of 25244047 is about 293.3501581546.

Adding to 25244047 its reverse (74044252), we get a palindrome (99288299).

The spelling of 25244047 in words is "twenty-five million, two hundred forty-four thousand, forty-seven".