28005530055 has 8 divisors (see below), whose sum is σ = 44808848112. Its totient is φ = 14936282688.

The previous prime is 28005530051. The next prime is 28005530087. The reversal of 28005530055 is 55003550082.

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

It is not a de Polignac number, because 28005530055 - 2² = 28005530051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28005529998 and 28005530025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28005530051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 933517654 + ... + 933517683.

It is an arithmetic number, because the mean of its divisors is an integer number (5601106014).

Almost surely, 2^28005530055 is an apocalyptic number.

28005530055 is a deficient number, since it is larger than the sum of its proper divisors (16803318057).

28005530055 is a wasteful number, since it uses less digits than its factorization.

28005530055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867035345.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 28005530055 in words is "twenty-eight billion, five million, five hundred thirty thousand, fifty-five".