25768006557695 has 4 divisors (see below), whose sum is σ = 30921607869240. Its totient is φ = 20614405246152.

The previous prime is 25768006557637. The next prime is 25768006557697. The reversal of 25768006557695 is 59675560086752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25768006557695 - 2¹⁶ = 25768006492159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25768006557697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2576800655765 + ... + 2576800655774.

It is an arithmetic number, because the mean of its divisors is an integer number (7730401967310).

Almost surely, 2^{25768006557695} is an apocalyptic number.

25768006557695 is a deficient number, since it is larger than the sum of its proper divisors (5153601311545).

25768006557695 is an equidigital number, since it uses as much as digits as its factorization.

25768006557695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153601311544.

The product of its (nonzero) digits is 952560000, while the sum is 71.

The spelling of 25768006557695 in words is "twenty-five trillion, seven hundred sixty-eight billion, six million, five hundred fifty-seven thousand, six hundred ninety-five".