28560522 has 32 divisors (see below), whose sum is σ = 59185152. Its totient is φ = 9180864.

The previous prime is 28560491. The next prime is 28560541. The reversal of 28560522 is 22506582.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 28560522.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27688 + ... + 28700.

It is an arithmetic number, because the mean of its divisors is an integer number (1849536).

Almost surely, 2^28560522 is an apocalyptic number.

28560522 is an abundant number, since it is smaller than the sum of its proper divisors (30624630).

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

28560522 is a wasteful number, since it uses less digits than its factorization.

28560522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 28560522 is about 5344.2045245294. The cubic root of 28560522 is about 305.6718041325.

The spelling of 28560522 in words is "twenty-eight million, five hundred sixty thousand, five hundred twenty-two".