28555082 has 16 divisors (see below), whose sum is σ = 44520840. Its totient is φ = 13719552.

The previous prime is 28555069. The next prime is 28555091. The reversal of 28555082 is 28055582.

It can be written as a sum of positive squares in 4 ways, for example, as 10569001 + 17986081 = 3251^2 + 4241^2 .

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, 12458 + ... + 14570.

Almost surely, 2^28555082 is an apocalyptic number.

28555082 is a deficient number, since it is larger than the sum of its proper divisors (15965758).

28555082 is a wasteful number, since it uses less digits than its factorization.

28555082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 28555082 is about 5343.6955377342. The cubic root of 28555082 is about 305.6523955213.

Subtracting from 28555082 its reverse (28055582), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 28555082 in words is "twenty-eight million, five hundred fifty-five thousand, eighty-two".