25026247 has 2 divisors, whose sum is σ = 25026248. Its totient is φ = 25026246.

The previous prime is 25026191. The next prime is 25026251. The reversal of 25026247 is 74262052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25026247 - 2¹¹ = 25024199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25026257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513123 + 12513124.

It is an arithmetic number, because the mean of its divisors is an integer number (12513124).

Almost surely, 2^25026247 is an apocalyptic number.

25026247 is a deficient number, since it is larger than the sum of its proper divisors (1).

25026247 is an equidigital number, since it uses as much as digits as its factorization.

25026247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 25026247 is about 5002.6240114564. The cubic root of 25026247 is about 292.5040669559.

Adding to 25026247 its reverse (74262052), we get a palindrome (99288299).

The spelling of 25026247 in words is "twenty-five million, twenty-six thousand, two hundred forty-seven".