25795728 has 120 divisors (see below), whose sum is σ = 83540288. Its totient is φ = 7278336.

The previous prime is 25795717. The next prime is 25795729. The reversal of 25795728 is 82759752.

It is a happy number.

25795728 is a `hidden beast` number, since 2 + 5 + 79 + 572 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (25795729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158175 + ... + 158337.

Almost surely, 2^25795728 is an apocalyptic number.

25795728 is a gapful number since it is divisible by the number (28) 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 25795728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41770144).

25795728 is an abundant number, since it is smaller than the sum of its proper divisors (57744560).

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

25795728 is a wasteful number, since it uses less digits than its factorization.

25795728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 332 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 25795728 is about 5078.9494976816. The cubic root of 25795728 is about 295.4717263611.

The spelling of 25795728 in words is "twenty-five million, seven hundred ninety-five thousand, seven hundred twenty-eight".