25853567488 has 160 divisors (see below), whose sum is σ = 62249730048. Its totient is φ = 10492416000.

The previous prime is 25853567471. The next prime is 25853567491. The reversal of 25853567488 is 88476535852.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5219413 + ... + 5224363.

Almost surely, 2^25853567488 is an apocalyptic number.

25853567488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25853567488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31124865024).

25853567488 is an abundant number, since it is smaller than the sum of its proper divisors (36396162560).

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

25853567488 is an equidigital number, since it uses as much as digits as its factorization.

25853567488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054 (or 5038 counting only the distinct ones).

The product of its digits is 64512000, while the sum is 61.

The spelling of 25853567488 in words is "twenty-five billion, eight hundred fifty-three million, five hundred sixty-seven thousand, four hundred eighty-eight".