28255265 has 8 divisors (see below), whose sum is σ = 33989760. Its totient is φ = 22548592.

The previous prime is 28255237. The next prime is 28255267. The reversal of 28255265 is 56255282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28255265 - 2¹⁰ = 28254241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28255267) 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 7 ways as a sum of consecutive naturals, for example, 4649 + ... + 8838.

It is an arithmetic number, because the mean of its divisors is an integer number (4248720).

Almost surely, 2^28255265 is an apocalyptic number.

It is an amenable number.

28255265 is a deficient number, since it is larger than the sum of its proper divisors (5734495).

28255265 is a wasteful number, since it uses less digits than its factorization.

28255265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911.

The product of its digits is 48000, while the sum is 35.

The square root of 28255265 is about 5315.5681728297. The cubic root of 28255265 is about 304.5788867218.

The spelling of 28255265 in words is "twenty-eight million, two hundred fifty-five thousand, two hundred sixty-five".