28925325 has 144 divisors (see below), whose sum is σ = 64995840. Its totient is φ = 12096000.

The previous prime is 28925317. The next prime is 28925341. The reversal of 28925325 is 52352982.

It is not a de Polignac number, because 28925325 - 2³ = 28925317 is a prime.

Its product of digits (43200) is a multiple of the sum of its prime factors (100).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28925325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 933060 + ... + 933090.

It is an arithmetic number, because the mean of its divisors is an integer number (451360).

Almost surely, 2^28925325 is an apocalyptic number.

28925325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28925325 is an abundant number, since it is smaller than the sum of its proper divisors (36070515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28925325 is a wasteful number, since it uses less digits than its factorization.

28925325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 92 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 28925325 is about 5378.2269383134. The cubic root of 28925325 is about 306.9677487013.

The spelling of 28925325 in words is "twenty-eight million, nine hundred twenty-five thousand, three hundred twenty-five".