28552 has 16 divisors (see below), whose sum is σ = 55440. Its totient is φ = 13776.

The previous prime is 28549. The next prime is 28559. The reversal of 28552 is 25582.

It is a nialpdrome in base 13.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (28559) 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 + ... + 385.

It is an arithmetic number, because the mean of its divisors is an integer number (3465).

2²⁸⁵⁵² is an apocalyptic number.

It is an amenable number.

28552 is a deficient number, since it is larger than the sum of its proper divisors (26888).

28552 is a wasteful number, since it uses less digits than its factorization.

28552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 128 counting only the distinct ones).

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

The square root of 28552 is about 168.9733706831. The cubic root of 28552 is about 30.5641398593.

The spelling of 28552 in words is "twenty-eight thousand, five hundred fifty-two".