28532755 has 8 divisors (see below), whose sum is σ = 34470000. Its totient is φ = 22672416.

The previous prime is 28532747. The next prime is 28532759. The reversal of 28532755 is 55723582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28532755 - 2³ = 28532747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28532759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18405 + ... + 19894.

It is an arithmetic number, because the mean of its divisors is an integer number (4308750).

Almost surely, 2^28532755 is an apocalyptic number.

28532755 is a deficient number, since it is larger than the sum of its proper divisors (5937245).

28532755 is a wasteful number, since it uses less digits than its factorization.

28532755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38453.

The product of its digits is 84000, while the sum is 37.

The square root of 28532755 is about 5341.6060318971. The cubic root of 28532755 is about 305.5727123271.

The spelling of 28532755 in words is "twenty-eight million, five hundred thirty-two thousand, seven hundred fifty-five".