25534004894271 has 16 divisors (see below), whose sum is σ = 37860024153600. Its totient is φ = 17008328989944.

The previous prime is 25534004894269. The next prime is 25534004894369. The reversal of 25534004894271 is 17249840043552.

It is a happy number.

25534004894271 is a `hidden beast` number, since 2 + 5 + 53 + 4 + 0 + 0 + 489 + 42 + 71 = 666.

It is not a de Polignac number, because 25534004894271 - 2¹ = 25534004894269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25534004894071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398326791 + ... + 398390888.

It is an arithmetic number, because the mean of its divisors is an integer number (2366251509600).

Almost surely, 2^{25534004894271} is an apocalyptic number.

25534004894271 is a deficient number, since it is larger than the sum of its proper divisors (12326019259329).

25534004894271 is a wasteful number, since it uses less digits than its factorization.

25534004894271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796718875 (or 796718869 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 25534004894271 in words is "twenty-five trillion, five hundred thirty-four billion, four million, eight hundred ninety-four thousand, two hundred seventy-one".