25652471570517 has 48 divisors (see below), whose sum is σ = 37969274512064. Its totient is φ = 15393088972800.

The previous prime is 25652471570471. The next prime is 25652471570519. The reversal of 25652471570517 is 71507517425652.

It is not a de Polignac number, because 25652471570517 - 2²³ = 25652463181909 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 (25652471570519) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13914783 + ... + 15650115.

Almost surely, 2^{25652471570517} is an apocalyptic number.

It is an amenable number.

25652471570517 is a deficient number, since it is larger than the sum of its proper divisors (12316802941547).

25652471570517 is a wasteful number, since it uses less digits than its factorization.

25652471570517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735762 (or 1735751 counting only the distinct ones).

The product of its (nonzero) digits is 20580000, while the sum is 57.

The spelling of 25652471570517 in words is "twenty-five trillion, six hundred fifty-two billion, four hundred seventy-one million, five hundred seventy thousand, five hundred seventeen".