25525868955489 has 128 divisors (see below), whose sum is σ = 45627531264000. Its totient is φ = 13777708089600.

The previous prime is 25525868955481. The next prime is 25525868955493. The reversal of 25525868955489 is 98455986852552.

25525868955489 is a `hidden beast` number, since 2 + 5 + 5 + 2 + 5 + 8 + 6 + 89 + 55 + 489 = 666.

It is not a de Polignac number, because 25525868955489 - 2³ = 25525868955481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25525868955481) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3384941059 + ... + 3384948599.

It is an arithmetic number, because the mean of its divisors is an integer number (356465088000).

Almost surely, 2^{25525868955489} is an apocalyptic number.

It is an amenable number.

25525868955489 is a deficient number, since it is larger than the sum of its proper divisors (20101662308511).

25525868955489 is a wasteful number, since it uses less digits than its factorization.

25525868955489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10236 (or 10230 counting only the distinct ones).

The product of its digits is 12441600000, while the sum is 81.

The spelling of 25525868955489 in words is "twenty-five trillion, five hundred twenty-five billion, eight hundred sixty-eight million, nine hundred fifty-five thousand, four hundred eighty-nine".