28282555 has 24 divisors (see below), whose sum is σ = 39726720. Its totient is φ = 19272960.

The previous prime is 28282547. The next prime is 28282567. The reversal of 28282555 is 55528282.

It is not a de Polignac number, because 28282555 - 2³ = 28282547 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58806 + ... + 59284.

It is an arithmetic number, because the mean of its divisors is an integer number (1655280).

Almost surely, 2^28282555 is an apocalyptic number.

28282555 is a deficient number, since it is larger than the sum of its proper divisors (11444165).

28282555 is a wasteful number, since it uses less digits than its factorization.

28282555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 732 counting only the distinct ones).

The product of its digits is 64000, while the sum is 37.

The square root of 28282555 is about 5318.1345413594. The cubic root of 28282555 is about 304.6769130926.

The spelling of 28282555 in words is "twenty-eight million, two hundred eighty-two thousand, five hundred fifty-five".