28475552 has 24 divisors (see below), whose sum is σ = 64070496. Its totient is φ = 12203712.

The previous prime is 28475543. The next prime is 28475563. The reversal of 28475552 is 25557482.

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, 63338 + ... + 63785.

It is an arithmetic number, because the mean of its divisors is an integer number (2669604).

Almost surely, 2^28475552 is an apocalyptic number.

It is an amenable number.

28475552 is an abundant number, since it is smaller than the sum of its proper divisors (35594944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28475552 is a wasteful number, since it uses less digits than its factorization.

28475552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127140 (or 127132 counting only the distinct ones).

The product of its digits is 112000, while the sum is 38.

The square root of 28475552 is about 5336.2488697586. The cubic root of 28475552 is about 305.3683697498.

The spelling of 28475552 in words is "twenty-eight million, four hundred seventy-five thousand, five hundred fifty-two".