25966728 has 24 divisors (see below), whose sum is σ = 70326750. Its totient is φ = 8655552.

The previous prime is 25966727. The next prime is 25966739. The reversal of 25966728 is 82766952.

It can be written as a sum of positive squares in only one way, i.e., 20958084 + 5008644 = 4578^2 + 2238^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (25966723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180253 + ... + 180396.

Almost surely, 2^25966728 is an apocalyptic number.

It is an amenable number.

25966728 is an abundant number, since it is smaller than the sum of its proper divisors (44360022).

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

25966728 is a wasteful number, since it uses less digits than its factorization.

25966728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360661 (or 360654 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 25966728 is about 5095.7558811230. The cubic root of 25966728 is about 296.1231834500.

The spelling of 25966728 in words is "twenty-five million, nine hundred sixty-six thousand, seven hundred twenty-eight".