28550082 has 16 divisors (see below), whose sum is σ = 62291232. Its totient is φ = 8651520.

The previous prime is 28550077. The next prime is 28550087. The reversal of 28550082 is 28005582.

It is an interprime number because it is at equal distance from previous prime (28550077) and next prime (28550087).

It is not an unprimeable number, because it can be changed into a prime (28550087) by changing a digit.

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, 216223 + ... + 216354.

It is an arithmetic number, because the mean of its divisors is an integer number (3893202).

Almost surely, 2^28550082 is an apocalyptic number.

28550082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28550082 is an abundant number, since it is smaller than the sum of its proper divisors (33741150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28550082 is a wasteful number, since it uses less digits than its factorization.

28550082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432593.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 28550082 is about 5343.2276762272. The cubic root of 28550082 is about 305.6345545501.

It can be divided in two parts, 285500 and 82, that added together give a palindrome (285582).

The spelling of 28550082 in words is "twenty-eight million, five hundred fifty thousand, eighty-two".