25728056 has 8 divisors (see below), whose sum is σ = 48240120. Its totient is φ = 12864024.

The previous prime is 25728049. The next prime is 25728077. The reversal of 25728056 is 65082752.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607996 + ... + 1608011.

It is an arithmetic number, because the mean of its divisors is an integer number (6030015).

Almost surely, 2^25728056 is an apocalyptic number.

It is an amenable number.

25728056 is a deficient number, since it is larger than the sum of its proper divisors (22512064).

25728056 is a wasteful number, since it uses less digits than its factorization.

25728056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216013 (or 3216009 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 25728056 is about 5072.2831151268. The cubic root of 25728056 is about 295.2131218722.

The spelling of 25728056 in words is "twenty-five million, seven hundred twenty-eight thousand, fifty-six".