25522560000 has 880 divisors, whose sum is σ = 108456282880. Its totient is φ = 5806080000.

The previous prime is 25522559987. The next prime is 25522560023. The reversal of 25522560000 is 6522552.

25522560000 is a `hidden beast` number, since 2 + 5 + 52 + 2 + 5 + 600 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 120959895 + ... + 120960105.

It is an arithmetic number, because the mean of its divisors is an integer number (123245776).

Almost surely, 2^25522560000 is an apocalyptic number.

25522560000 is a gapful number since it is divisible by the number (20) 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 25522560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54228141440).

25522560000 is an abundant number, since it is smaller than the sum of its proper divisors (82933722880).

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

25522560000 is an equidigital number, since it uses as much as digits as its factorization.

25522560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 25522560000 in words is "twenty-five billion, five hundred twenty-two million, five hundred sixty thousand".