25545355616017 has 8 divisors (see below), whose sum is σ = 28058971844160. Its totient is φ = 23148651770640.

The previous prime is 25545355615993. The next prime is 25545355616047. The reversal of 25545355616017 is 71061655354552.

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 25545355616017 - 2³⁵ = 25510995877649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25545355616047) 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, 29228095234 + ... + 29228096107.

It is an arithmetic number, because the mean of its divisors is an integer number (3507371480520).

Almost surely, 2^{25545355616017} is an apocalyptic number.

It is an amenable number.

25545355616017 is a deficient number, since it is larger than the sum of its proper divisors (2513616228143).

25545355616017 is a wasteful number, since it uses less digits than its factorization.

25545355616017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58456191383.

The product of its (nonzero) digits is 18900000, while the sum is 55.

The spelling of 25545355616017 in words is "twenty-five trillion, five hundred forty-five billion, three hundred fifty-five million, six hundred sixteen thousand, seventeen".