28567250 has 16 divisors (see below), whose sum is σ = 53478360. Its totient is φ = 11426800.

The previous prime is 28567247. The next prime is 28567267. The reversal of 28567250 is 5276582.

It can be written as a sum of positive squares in 4 ways, for example, as 18913801 + 9653449 = 4349^2 + 3107^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28567250.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56885 + ... + 57384.

Almost surely, 2^28567250 is an apocalyptic number.

28567250 is a deficient number, since it is larger than the sum of its proper divisors (24911110).

28567250 is a wasteful number, since it uses less digits than its factorization.

28567250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114286 (or 114276 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 28567250 is about 5344.8339543900. The cubic root of 28567250 is about 305.6958046092.

The spelling of 28567250 in words is "twenty-eight million, five hundred sixty-seven thousand, two hundred fifty".