28005300550 has 24 divisors (see below), whose sum is σ = 52390972656. Its totient is φ = 11137364640.

The previous prime is 28005300539. The next prime is 28005300577. The reversal of 28005300550 is 5500350082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1610154 + ... + 1627453.

It is an arithmetic number, because the mean of its divisors is an integer number (2182957194).

Almost surely, 2^28005300550 is an apocalyptic number.

28005300550 is a deficient number, since it is larger than the sum of its proper divisors (24385672106).

28005300550 is a wasteful number, since it uses less digits than its factorization.

28005300550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237792 (or 3237787 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 28005300550 in words is "twenty-eight billion, five million, three hundred thousand, five hundred fifty".