25564067 has 2 divisors, whose sum is σ = 25564068. Its totient is φ = 25564066.

The previous prime is 25564027. The next prime is 25564069. The reversal of 25564067 is 76046552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25564067 - 2¹² = 25559971 is a prime.

Together with 25564069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25564069) 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, 12782033 + 12782034.

It is an arithmetic number, because the mean of its divisors is an integer number (12782034).

Almost surely, 2^25564067 is an apocalyptic number.

25564067 is a deficient number, since it is larger than the sum of its proper divisors (1).

25564067 is an equidigital number, since it uses as much as digits as its factorization.

25564067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 25564067 is about 5056.0920679909. The cubic root of 25564067 is about 294.5845612568.

The spelling of 25564067 in words is "twenty-five million, five hundred sixty-four thousand, sixty-seven".