28255023 has 6 divisors (see below), whose sum is σ = 40812824. Its totient is φ = 18836676.

The previous prime is 28255001. The next prime is 28255049. The reversal of 28255023 is 32055282.

It is not a de Polignac number, because 28255023 - 2⁵ = 28254991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1569715 + ... + 1569732.

Almost surely, 2^28255023 is an apocalyptic number.

28255023 is a deficient number, since it is larger than the sum of its proper divisors (12557801).

28255023 is a wasteful number, since it uses less digits than its factorization.

28255023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139453 (or 3139450 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 28255023 is about 5315.5454094571. The cubic root of 28255023 is about 304.5780171694.

The spelling of 28255023 in words is "twenty-eight million, two hundred fifty-five thousand, twenty-three".