28550205582 has 16 divisors (see below), whose sum is σ = 57483637200. Its totient is φ = 9452864192.

The previous prime is 28550205547. The next prime is 28550205583.

28550205582 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28550205582² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550205583) 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, 15966783 + ... + 15968570.

It is an arithmetic number, because the mean of its divisors is an integer number (3592727325).

Almost surely, 2^28550205582 is an apocalyptic number.

28550205582 is an abundant number, since it is smaller than the sum of its proper divisors (28933431618).

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

28550205582 is a wasteful number, since it uses less digits than its factorization.

28550205582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31935507.

The product of its (nonzero) digits is 320000, while the sum is 42.

The spelling of 28550205582 in words is "twenty-eight billion, five hundred fifty million, two hundred five thousand, five hundred eighty-two".