28525874 has 16 divisors (see below), whose sum is σ = 46168920. Its totient is φ = 13140480.

The previous prime is 28525867. The next prime is 28525877. The reversal of 28525874 is 47852582.

It can be written as a sum of positive squares in 4 ways, for example, as 17682025 + 10843849 = 4205^2 + 3293^2 .

It is not an unprimeable number, because it can be changed into a prime (28525877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23564 + ... + 24744.

Almost surely, 2^28525874 is an apocalyptic number.

28525874 is a deficient number, since it is larger than the sum of its proper divisors (17643046).

28525874 is a wasteful number, since it uses less digits than its factorization.

28525874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125.

The product of its digits is 179200, while the sum is 41.

The square root of 28525874 is about 5340.9618983850. The cubic root of 28525874 is about 305.5481462348.

The spelling of 28525874 in words is "twenty-eight million, five hundred twenty-five thousand, eight hundred seventy-four".