25328816 has 20 divisors (see below), whose sum is σ = 50272824. Its totient is φ = 12355200.

The previous prime is 25328813. The next prime is 25328839. The reversal of 25328816 is 61882352.

It is not an unprimeable number, because it can be changed into a prime (25328813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18650 + ... + 19961.

Almost surely, 2^25328816 is an apocalyptic number.

It is an amenable number.

25328816 is a deficient number, since it is larger than the sum of its proper divisors (24944008).

25328816 is a wasteful number, since it uses less digits than its factorization.

25328816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38660 (or 38654 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 25328816 is about 5032.7741852779. The cubic root of 25328816 is about 293.6781459381.

The spelling of 25328816 in words is "twenty-five million, three hundred twenty-eight thousand, eight hundred sixteen".