25975915065897 has 8 divisors (see below), whose sum is σ = 34635021303360. Its totient is φ = 17317042769520.

The previous prime is 25975915065817. The next prime is 25975915065911. The reversal of 25975915065897 is 79856051957952.

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

It is not a de Polignac number, because 25975915065897 - 2¹⁵ = 25975915033129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25975915065817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58226022 + ... + 58670447.

It is an arithmetic number, because the mean of its divisors is an integer number (4329377662920).

Almost surely, 2^{25975915065897} is an apocalyptic number.

It is an amenable number.

25975915065897 is a deficient number, since it is larger than the sum of its proper divisors (8659106237463).

25975915065897 is a wasteful number, since it uses less digits than its factorization.

25975915065897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116970543.

The product of its (nonzero) digits is 2143260000, while the sum is 78.

The spelling of 25975915065897 in words is "twenty-five trillion, nine hundred seventy-five billion, nine hundred fifteen million, sixty-five thousand, eight hundred ninety-seven".