25269822720 has 720 divisors, whose sum is σ = 97762230720. Its totient is φ = 6234734592.

The previous prime is 25269822719. The next prime is 25269822727. The reversal of 25269822720 is 2722896252.

25269822720 is a `hidden beast` number, since 2 + 526 + 9 + 82 + 27 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25269822727) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 428302051 + ... + 428302109.

It is an arithmetic number, because the mean of its divisors is an integer number (135780876).

Almost surely, 2^25269822720 is an apocalyptic number.

25269822720 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 25269822720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48881115360).

25269822720 is an abundant number, since it is smaller than the sum of its proper divisors (72492408000).

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

25269822720 is an frugal number, since it uses more digits than its factorization.

25269822720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 25269822720 in words is "twenty-five billion, two hundred sixty-nine million, eight hundred twenty-two thousand, seven hundred twenty".