28560525 has 24 divisors (see below), whose sum is σ = 53966784. Its totient is φ = 13056000.

The previous prime is 28560491. The next prime is 28560541. The reversal of 28560525 is 52506582.

It is not a de Polignac number, because 28560525 - 2¹⁰ = 28559501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26676 + ... + 27725.

It is an arithmetic number, because the mean of its divisors is an integer number (2248616).

Almost surely, 2^28560525 is an apocalyptic number.

28560525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28560525 is a deficient number, since it is larger than the sum of its proper divisors (25406259).

28560525 is a wasteful number, since it uses less digits than its factorization.

28560525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54421 (or 54416 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 28560525 is about 5344.2048052072. The cubic root of 28560525 is about 305.6718148351.

The spelling of 28560525 in words is "twenty-eight million, five hundred sixty thousand, five hundred twenty-five".