25555028 has 24 divisors (see below), whose sum is σ = 45986304. Its totient is φ = 12420000.

The previous prime is 25555009. The next prime is 25555031. The reversal of 25555028 is 82055552.

It is a junction number, because it is equal to n+sod(n) for n = 25554985 and 25555003.

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 7 ways as a sum of consecutive naturals, for example, 33653 + ... + 34403.

It is an arithmetic number, because the mean of its divisors is an integer number (1916096).

Almost surely, 2^25555028 is an apocalyptic number.

It is an amenable number.

25555028 is a deficient number, since it is larger than the sum of its proper divisors (20431276).

25555028 is a wasteful number, since it uses less digits than its factorization.

25555028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 25555028 is about 5055.1981167903. The cubic root of 25555028 is about 294.5498372078.

The spelling of 25555028 in words is "twenty-five million, five hundred fifty-five thousand, twenty-eight".