28382255 has 16 divisors (see below), whose sum is σ = 37266048. Its totient is φ = 20580000.

The previous prime is 28382227. The next prime is 28382273. The reversal of 28382255 is 55228382.

It is not a de Polignac number, because 28382255 - 2⁶ = 28382191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26480 + ... + 27530.

It is an arithmetic number, because the mean of its divisors is an integer number (2329128).

Almost surely, 2^28382255 is an apocalyptic number.

28382255 is a deficient number, since it is larger than the sum of its proper divisors (8883793).

28382255 is a wasteful number, since it uses less digits than its factorization.

28382255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558.

The product of its digits is 38400, while the sum is 35.

The square root of 28382255 is about 5327.4998826842. The cubic root of 28382255 is about 305.0345029497.

It can be divided in two parts, 28 and 382255, that added together give a palindrome (382283).

The spelling of 28382255 in words is "twenty-eight million, three hundred eighty-two thousand, two hundred fifty-five".