28152265 has 8 divisors (see below), whose sum is σ = 33811200. Its totient is φ = 22502832.

The previous prime is 28152259. The next prime is 28152277. The reversal of 28152265 is 56225182.

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 28152265 - 2⁵ = 28152233 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10536 + ... + 12934.

It is an arithmetic number, because the mean of its divisors is an integer number (4226400).

Almost surely, 2^28152265 is an apocalyptic number.

It is an amenable number.

28152265 is a deficient number, since it is larger than the sum of its proper divisors (5658935).

28152265 is a wasteful number, since it uses less digits than its factorization.

28152265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751.

The product of its digits is 9600, while the sum is 31.

The square root of 28152265 is about 5305.8708050611. The cubic root of 28152265 is about 304.2083384035.

The spelling of 28152265 in words is "twenty-eight million, one hundred fifty-two thousand, two hundred sixty-five".