83425585221 has 12 divisors (see below), whose sum is σ = 131458498080. Its totient is φ = 50560960680.

The previous prime is 83425585189. The next prime is 83425585259. The reversal of 83425585221 is 12258552438.

83425585221 is a `hidden beast` number, since 8 + 3 + 42 + 5 + 585 + 2 + 21 = 666.

It is not a de Polignac number, because 83425585221 - 2⁵ = 83425585189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83425585261) 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 11 ways as a sum of consecutive naturals, for example, 421341241 + ... + 421341438.

It is an arithmetic number, because the mean of its divisors is an integer number (10954874840).

Almost surely, 2^83425585221 is an apocalyptic number.

It is an amenable number.

83425585221 is a deficient number, since it is larger than the sum of its proper divisors (48032912859).

83425585221 is a wasteful number, since it uses less digits than its factorization.

83425585221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842682696 (or 842682693 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The spelling of 83425585221 in words is "eighty-three billion, four hundred twenty-five million, five hundred eighty-five thousand, two hundred twenty-one".