25443388960 has 192 divisors, whose sum is σ = 69419306880. Its totient is φ = 8724602880.

The previous prime is 25443388903. The next prime is 25443388967. The reversal of 25443388960 is 6988334452.

It is a junction number, because it is equal to n+sod(n) for n = 25443388898 and 25443388907.

It is not an unprimeable number, because it can be changed into a prime (25443388967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2188924 + ... + 2200516.

It is an arithmetic number, because the mean of its divisors is an integer number (361558890).

Almost surely, 2^25443388960 is an apocalyptic number.

25443388960 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 25443388960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34709653440).

25443388960 is an abundant number, since it is smaller than the sum of its proper divisors (43975917920).

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

25443388960 is a wasteful number, since it uses less digits than its factorization.

25443388960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11691 (or 11683 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 25443388960 in words is "twenty-five billion, four hundred forty-three million, three hundred eighty-eight thousand, nine hundred sixty".