25454249 has 2 divisors, whose sum is σ = 25454250. Its totient is φ = 25454248.

The previous prime is 25454227. The next prime is 25454293. The reversal of 25454249 is 94245452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25321024 + 133225 = 5032^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 25454249 - 2⁸ = 25453993 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (25454749) 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, 12727124 + 12727125.

It is an arithmetic number, because the mean of its divisors is an integer number (12727125).

Almost surely, 2^25454249 is an apocalyptic number.

It is an amenable number.

25454249 is a deficient number, since it is larger than the sum of its proper divisors (1).

25454249 is an equidigital number, since it uses as much as digits as its factorization.

25454249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

The square root of 25454249 is about 5045.2204114389. The cubic root of 25454249 is about 294.1621307909.

The spelling of 25454249 in words is "twenty-five million, four hundred fifty-four thousand, two hundred forty-nine".