25695667 has 2 divisors, whose sum is σ = 25695668. Its totient is φ = 25695666.

The previous prime is 25695647. The next prime is 25695671. The reversal of 25695667 is 76659652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25695667 - 2¹⁵ = 25662899 is a prime.

It is not a weakly prime, because it can be changed into another prime (25695617) 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, 12847833 + 12847834.

It is an arithmetic number, because the mean of its divisors is an integer number (12847834).

Almost surely, 2^25695667 is an apocalyptic number.

25695667 is a deficient number, since it is larger than the sum of its proper divisors (1).

25695667 is an equidigital number, since it uses as much as digits as its factorization.

25695667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 46.

The square root of 25695667 is about 5069.0893659512. The cubic root of 25695667 is about 295.0891887750.

It can be divided in two parts, 25695 and 667, that added together give a palindrome (26362).

The spelling of 25695667 in words is "twenty-five million, six hundred ninety-five thousand, six hundred sixty-seven".