25664756063 has 8 divisors (see below), whose sum is σ = 25721827440. Its totient is φ = 25607736000.

The previous prime is 25664755999. The next prime is 25664756077. The reversal of 25664756063 is 36065746652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25664756063 - 2⁶ = 25664755999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25664756083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092188 + ... + 1115438.

It is an arithmetic number, because the mean of its divisors is an integer number (3215228430).

Almost surely, 2^25664756063 is an apocalyptic number.

25664756063 is a deficient number, since it is larger than the sum of its proper divisors (57071377).

25664756063 is a wasteful number, since it uses less digits than its factorization.

25664756063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25657.

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 25664756063 in words is "twenty-five billion, six hundred sixty-four million, seven hundred fifty-six thousand, sixty-three".