28522512 has 30 divisors (see below), whose sum is σ = 79823822. Its totient is φ = 9507456.

The previous prime is 28522493. The next prime is 28522513. The reversal of 28522512 is 21522582.

It can be written as a sum of positive squares in only one way, i.e., 26873856 + 1648656 = 5184^2 + 1284^2 .

It is not an unprimeable number, because it can be changed into a prime (28522513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98893 + ... + 99180.

Almost surely, 2^28522512 is an apocalyptic number.

It is an amenable number.

28522512 is an abundant number, since it is smaller than the sum of its proper divisors (51301310).

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

28522512 is a wasteful number, since it uses less digits than its factorization.

28522512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198087 (or 198078 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 28522512 is about 5340.6471517972. The cubic root of 28522512 is about 305.5361420075.

The spelling of 28522512 in words is "twenty-eight million, five hundred twenty-two thousand, five hundred twelve".