25344427 has 2 divisors, whose sum is σ = 25344428. Its totient is φ = 25344426.

The previous prime is 25344419. The next prime is 25344443. The reversal of 25344427 is 72444352.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25344427 - 2³ = 25344419 is a prime.

It is not a weakly prime, because it can be changed into another prime (25344457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12672213 + 12672214.

It is an arithmetic number, because the mean of its divisors is an integer number (12672214).

Almost surely, 2^25344427 is an apocalyptic number.

25344427 is a deficient number, since it is larger than the sum of its proper divisors (1).

25344427 is an equidigital number, since it uses as much as digits as its factorization.

25344427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 31.

The square root of 25344427 is about 5034.3248802595. The cubic root of 25344427 is about 293.7384681153.

Adding to 25344427 its reverse (72444352), we get a palindrome (97788779).

The spelling of 25344427 in words is "twenty-five million, three hundred forty-four thousand, four hundred twenty-seven".