728025225 has 24 divisors (see below), whose sum is σ = 1226385792. Its totient is φ = 380952000.

The previous prime is 728025169. The next prime is 728025227. The reversal of 728025225 is 522520827.

It is not a de Polignac number, because 728025225 - 2⁶ = 728025161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (728025227) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 87601 + ... + 95550.

It is an arithmetic number, because the mean of its divisors is an integer number (51099408).

Almost surely, 2^728025225 is an apocalyptic number.

728025225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

728025225 is a deficient number, since it is larger than the sum of its proper divisors (498360567).

728025225 is a wasteful number, since it uses less digits than its factorization.

728025225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183217 (or 183212 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 728025225 is about 26981.9425727652. The cubic root of 728025225 is about 899.5986790974.

The spelling of 728025225 in words is "seven hundred twenty-eight million, twenty-five thousand, two hundred twenty-five".