28755512 has 32 divisors (see below), whose sum is σ = 58299600. Its totient is φ = 13250304.

The previous prime is 28755511. The next prime is 28755527. The reversal of 28755512 is 21555782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28755511) 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, 3068 + ... + 8180.

Almost surely, 2^28755512 is an apocalyptic number.

It is an amenable number.

28755512 is an abundant number, since it is smaller than the sum of its proper divisors (29544088).

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

28755512 is a wasteful number, since it uses less digits than its factorization.

28755512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175 (or 5171 counting only the distinct ones).

The product of its digits is 28000, while the sum is 35.

The square root of 28755512 is about 5362.4166193984. The cubic root of 28755512 is about 306.3658602578.

The spelling of 28755512 in words is "twenty-eight million, seven hundred fifty-five thousand, five hundred twelve".