25228828 has 12 divisors (see below), whose sum is σ = 44258760. Its totient is φ = 12583472.

The previous prime is 25228787. The next prime is 25228837. The reversal of 25228828 is 82882252.

It is a congruent number.

It is an unprimeable number.

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, 5851 + ... + 9202.

It is an arithmetic number, because the mean of its divisors is an integer number (3688230).

Almost surely, 2^25228828 is an apocalyptic number.

It is an amenable number.

25228828 is a deficient number, since it is larger than the sum of its proper divisors (19029932).

25228828 is a wasteful number, since it uses less digits than its factorization.

25228828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15476 (or 15474 counting only the distinct ones).

The product of its digits is 40960, while the sum is 37.

The square root of 25228828 is about 5022.8306760232. The cubic root of 25228828 is about 293.2911951637.

The spelling of 25228828 in words is "twenty-five million, two hundred twenty-eight thousand, eight hundred twenty-eight".