25864448 has 36 divisors (see below), whose sum is σ = 52391808. Its totient is φ = 12741120.

The previous prime is 25864441. The next prime is 25864471. The reversal of 25864448 is 84446852.

It is not an unprimeable number, because it can be changed into a prime (25864441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17465 + ... + 18887.

It is an arithmetic number, because the mean of its divisors is an integer number (1455328).

Almost surely, 2^25864448 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 25864448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26195904).

25864448 is an abundant number, since it is smaller than the sum of its proper divisors (26527360).

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

25864448 is an equidigital number, since it uses as much as digits as its factorization.

25864448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1496 counting only the distinct ones).

The product of its digits is 245760, while the sum is 41.

The square root of 25864448 is about 5085.7101765633. The cubic root of 25864448 is about 295.7338732943.

The spelling of 25864448 in words is "twenty-five million, eight hundred sixty-four thousand, four hundred forty-eight".