25853138592 has 96 divisors (see below), whose sum is σ = 71112867840. Its totient is φ = 8208372480.

The previous prime is 25853138579. The next prime is 25853138599. The reversal of 25853138592 is 29583135852.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (25853138599) 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, 503217 + ... + 552207.

It is an arithmetic number, because the mean of its divisors is an integer number (740759040).

Almost surely, 2^25853138592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25853138592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35556433920).

25853138592 is an abundant number, since it is smaller than the sum of its proper divisors (45259729248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25853138592 is a wasteful number, since it uses less digits than its factorization.

25853138592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49266 (or 49258 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 51.

The spelling of 25853138592 in words is "twenty-five billion, eight hundred fifty-three million, one hundred thirty-eight thousand, five hundred ninety-two".