25864704 has 80 divisors (see below), whose sum is σ = 76602240. Its totient is φ = 8616960.

The previous prime is 25864687. The next prime is 25864717. The reversal of 25864704 is 40746852.

25864704 is a `hidden beast` number, since 2 + 5 + 8 + 647 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12889 + ... + 14759.

It is an arithmetic number, because the mean of its divisors is an integer number (957528).

Almost surely, 2^25864704 is an apocalyptic number.

25864704 is a gapful number since it is divisible by the number (24) 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 25864704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38301120).

25864704 is an abundant number, since it is smaller than the sum of its proper divisors (50737536).

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

25864704 is an equidigital number, since it uses as much as digits as its factorization.

25864704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 25864704 is about 5085.7353450607. The cubic root of 25864704 is about 295.7348489916.

The spelling of 25864704 in words is "twenty-five million, eight hundred sixty-four thousand, seven hundred four".