28125850 has 12 divisors (see below), whose sum is σ = 52314174. Its totient is φ = 11250320.

The previous prime is 28125847. The next prime is 28125859. The reversal of 28125850 is 5852182.

It can be written as a sum of positive squares in 3 ways, for example, as 19263321 + 8862529 = 4389^2 + 2977^2 .

It is not an unprimeable number, because it can be changed into a prime (28125859) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 281209 + ... + 281308.

Almost surely, 2^28125850 is an apocalyptic number.

28125850 is a deficient number, since it is larger than the sum of its proper divisors (24188324).

28125850 is a wasteful number, since it uses less digits than its factorization.

28125850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562529 (or 562524 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 28125850 is about 5303.3809970622. The cubic root of 28125850 is about 304.1131633755.

The spelling of 28125850 in words is "twenty-eight million, one hundred twenty-five thousand, eight hundred fifty".