52585081220 has 24 divisors (see below), whose sum is σ = 126204195264. Its totient is φ = 18029170656.

The previous prime is 52585081193. The next prime is 52585081249. The reversal of 52585081220 is 2218058525.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187803722 + ... + 187804001.

It is an arithmetic number, because the mean of its divisors is an integer number (5258508136).

Almost surely, 2^52585081220 is an apocalyptic number.

It is an amenable number.

52585081220 is an abundant number, since it is smaller than the sum of its proper divisors (73619114044).

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

52585081220 is a wasteful number, since it uses less digits than its factorization.

52585081220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375607739 (or 375607737 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The spelling of 52585081220 in words is "fifty-two billion, five hundred eighty-five million, eighty-one thousand, two hundred twenty".