25636044067 has 2 divisors, whose sum is σ = 25636044068. Its totient is φ = 25636044066.

The previous prime is 25636044001. The next prime is 25636044169. The reversal of 25636044067 is 76044063652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25636044067 - 2¹⁵ = 25636011299 is a prime.

It is not a weakly prime, because it can be changed into another prime (25636044667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12818022033 + 12818022034.

It is an arithmetic number, because the mean of its divisors is an integer number (12818022034).

Almost surely, 2^25636044067 is an apocalyptic number.

25636044067 is a deficient number, since it is larger than the sum of its proper divisors (1).

25636044067 is an equidigital number, since it uses as much as digits as its factorization.

25636044067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 25636044067 in words is "twenty-five billion, six hundred thirty-six million, forty-four thousand, sixty-seven".