25843453056 has 160 divisors (see below), whose sum is σ = 79391642880. Its totient is φ = 8336494080.

The previous prime is 25843453049. The next prime is 25843453061. The reversal of 25843453056 is 65035434852.

25843453056 is a `hidden beast` number, since 2 + 5 + 84 + 34 + 530 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 281205 + ... + 361611.

It is an arithmetic number, because the mean of its divisors is an integer number (496197768).

Almost surely, 2^25843453056 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 25843453056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39695821440).

25843453056 is an abundant number, since it is smaller than the sum of its proper divisors (53548189824).

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

25843453056 is an equidigital number, since it uses as much as digits as its factorization.

25843453056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80464 (or 80443 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 25843453056 in words is "twenty-five billion, eight hundred forty-three million, four hundred fifty-three thousand, fifty-six".