25497193095779 has 16 divisors (see below), whose sum is σ = 27009231105600. Its totient is φ = 23986513388544.

The previous prime is 25497193095727. The next prime is 25497193095793. The reversal of 25497193095779 is 97759039179452.

It is a cyclic number.

It is not a de Polignac number, because 25497193095779 - 2⁸ = 25497193095523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25497193095799) 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 in 15 ways as a sum of consecutive naturals, for example, 392721482 + ... + 392786400.

It is an arithmetic number, because the mean of its divisors is an integer number (1688076944100).

Almost surely, 2^{25497193095779} is an apocalyptic number.

25497193095779 is a deficient number, since it is larger than the sum of its proper divisors (1512038009821).

25497193095779 is a wasteful number, since it uses less digits than its factorization.

25497193095779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75022.

The product of its (nonzero) digits is 1350253800, while the sum is 77.

The spelling of 25497193095779 in words is "twenty-five trillion, four hundred ninety-seven billion, one hundred ninety-three million, ninety-five thousand, seven hundred seventy-nine".