28816552 has 16 divisors (see below), whose sum is σ = 54316800. Its totient is φ = 14332080.

The previous prime is 28816549. The next prime is 28816561. The reversal of 28816552 is 25561882.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7902 + ... + 10957.

It is an arithmetic number, because the mean of its divisors is an integer number (3394800).

Almost surely, 2^28816552 is an apocalyptic number.

It is an amenable number.

28816552 is a deficient number, since it is larger than the sum of its proper divisors (25500248).

28816552 is a wasteful number, since it uses less digits than its factorization.

28816552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19056 (or 19052 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 28816552 is about 5368.1050660359. The cubic root of 28816552 is about 306.5824837194.

The spelling of 28816552 in words is "twenty-eight million, eight hundred sixteen thousand, five hundred fifty-two".