28305325 has 12 divisors (see below), whose sum is σ = 36231808. Its totient is φ = 21913200.

The previous prime is 28305313. The next prime is 28305349. The reversal of 28305325 is 52350382.

It is not a de Polignac number, because 28305325 - 2⁷ = 28305197 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28305293 and 28305302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17487 + ... + 19036.

Almost surely, 2^28305325 is an apocalyptic number.

28305325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28305325 is a deficient number, since it is larger than the sum of its proper divisors (7926483).

28305325 is a wasteful number, since it uses less digits than its factorization.

28305325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36564 (or 36559 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 28305325 is about 5320.2748989126. The cubic root of 28305325 is about 304.7586552640.

The spelling of 28305325 in words is "twenty-eight million, three hundred five thousand, three hundred twenty-five".