28583325 has 18 divisors (see below), whose sum is σ = 51196314. Its totient is φ = 15244320.

The previous prime is 28583309. The next prime is 28583371. The reversal of 28583325 is 52338582.

It can be written as a sum of positive squares in 3 ways, for example, as 131769 + 28451556 = 363^2 + 5334^2 .

It is not a de Polignac number, because 28583325 - 2⁴ = 28583309 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28583325.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 63294 + ... + 63743.

Almost surely, 2^28583325 is an apocalyptic number.

28583325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28583325 is a deficient number, since it is larger than the sum of its proper divisors (22612989).

28583325 is a wasteful number, since it uses less digits than its factorization.

28583325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127053 (or 127045 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 28583325 is about 5346.3375314321. The cubic root of 28583325 is about 305.7531329441.

The spelling of 28583325 in words is "twenty-eight million, five hundred eighty-three thousand, three hundred twenty-five".