28523265 has 8 divisors (see below), whose sum is σ = 45637248. Its totient is φ = 15212400.

The previous prime is 28523239. The next prime is 28523273. The reversal of 28523265 is 56232582.

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

It is not a de Polignac number, because 28523265 - 2¹¹ = 28521217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950761 + ... + 950790.

It is an arithmetic number, because the mean of its divisors is an integer number (5704656).

Almost surely, 2^28523265 is an apocalyptic number.

It is an amenable number.

28523265 is a deficient number, since it is larger than the sum of its proper divisors (17113983).

28523265 is a wasteful number, since it uses less digits than its factorization.

28523265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901559.

The product of its digits is 28800, while the sum is 33.

The square root of 28523265 is about 5340.7176484064. The cubic root of 28523265 is about 305.5388307222.

The spelling of 28523265 in words is "twenty-eight million, five hundred twenty-three thousand, two hundred sixty-five".