28448325 has 36 divisors (see below), whose sum is σ = 51841920. Its totient is φ = 14908320.

The previous prime is 28448323. The next prime is 28448341. The reversal of 28448325 is 52384482.

It is not a de Polignac number, because 28448325 - 2¹ = 28448323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28448325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28448323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12204 + ... + 14346.

Almost surely, 2^28448325 is an apocalyptic number.

28448325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28448325 is a deficient number, since it is larger than the sum of its proper divisors (23393595).

28448325 is a wasteful number, since it uses less digits than its factorization.

28448325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 2210 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 28448325 is about 5333.6971230095. The cubic root of 28448325 is about 305.2710123639.

The spelling of 28448325 in words is "twenty-eight million, four hundred forty-eight thousand, three hundred twenty-five".