25928928 has 36 divisors (see below), whose sum is σ = 73736208. Its totient is φ = 8642880.

The previous prime is 25928923. The next prime is 25928941. The reversal of 25928928 is 82982952.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25928923) 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 5 ways as a sum of consecutive naturals, for example, 44728 + ... + 45303.

It is an arithmetic number, because the mean of its divisors is an integer number (2048228).

Almost surely, 2^25928928 is an apocalyptic number.

It is an amenable number.

25928928 is an abundant number, since it is smaller than the sum of its proper divisors (47807280).

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

25928928 is a wasteful number, since it uses less digits than its factorization.

25928928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90047 (or 90036 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 25928928 is about 5092.0455614615. The cubic root of 25928928 is about 295.9794239410.

The spelling of 25928928 in words is "twenty-five million, nine hundred twenty-eight thousand, nine hundred twenty-eight".