28550305033 has 8 divisors (see below), whose sum is σ = 29553067080. Its totient is φ = 27548760960.

The previous prime is 28550305001. The next prime is 28550305097. The reversal of 28550305033 is 33050305582.

It can be written as a sum of positive squares in 4 ways, for example, as 3853553929 + 24696751104 = 62077^2 + 157152^2 .

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 28550305033 - 2⁵ = 28550305001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28550305033.

It is not an unprimeable number, because it can be changed into a prime (28550305633) 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, 256660 + ... + 350677.

It is an arithmetic number, because the mean of its divisors is an integer number (3694133385).

Almost surely, 2^28550305033 is an apocalyptic number.

It is an amenable number.

28550305033 is a deficient number, since it is larger than the sum of its proper divisors (1002762047).

28550305033 is a wasteful number, since it uses less digits than its factorization.

28550305033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608987.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 28550305033 in words is "twenty-eight billion, five hundred fifty million, three hundred five thousand, thirty-three".