28000552 has 16 divisors (see below), whose sum is σ = 52616160. Its totient is φ = 13969584.

The previous prime is 28000543. The next prime is 28000559. The reversal of 28000552 is 25500082.

It is not an unprimeable number, because it can be changed into a prime (28000559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 7489.

It is an arithmetic number, because the mean of its divisors is an integer number (3288510).

Almost surely, 2^28000552 is an apocalyptic number.

It is an amenable number.

28000552 is a deficient number, since it is larger than the sum of its proper divisors (24615608).

28000552 is a wasteful number, since it uses less digits than its factorization.

28000552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680 (or 7676 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 28000552 is about 5291.5547809694. The cubic root of 28000552 is about 303.6608926472.

The spelling of 28000552 in words is "twenty-eight million, five hundred fifty-two", and thus it is an aban number.