28564125 has 48 divisors (see below), whose sum is σ = 50401728. Its totient is φ = 14364000.

The previous prime is 28564121. The next prime is 28564127. The reversal of 28564125 is 52146582.

It is not a de Polignac number, because 28564125 - 2² = 28564121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28564121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135270 + ... + 135480.

It is an arithmetic number, because the mean of its divisors is an integer number (1050036).

Almost surely, 2^28564125 is an apocalyptic number.

28564125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28564125 is a deficient number, since it is larger than the sum of its proper divisors (21837603).

28564125 is a wasteful number, since it uses less digits than its factorization.

28564125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 238 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 28564125 is about 5344.5416080334. The cubic root of 28564125 is about 305.6846574130.

It can be divided in two parts, 285 and 64125, that multiplied together give a square (18275625 = 4275²).

The spelling of 28564125 in words is "twenty-eight million, five hundred sixty-four thousand, one hundred twenty-five".