52018385220 has 48 divisors (see below), whose sum is σ = 161834977920. Its totient is φ = 13871569248.

The previous prime is 52018385197. The next prime is 52018385233. The reversal of 52018385220 is 2258381025.

52018385220 is a `hidden beast` number, since 52 + 0 + 1 + 8 + 385 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48164632 + ... + 48165711.

It is an arithmetic number, because the mean of its divisors is an integer number (3371562040).

Almost surely, 2^52018385220 is an apocalyptic number.

It is an amenable number.

52018385220 is an abundant number, since it is smaller than the sum of its proper divisors (109816592700).

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

52018385220 is a wasteful number, since it uses less digits than its factorization.

52018385220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96330361 (or 96330353 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 52018385220 in words is "fifty-two billion, eighteen million, three hundred eighty-five thousand, two hundred twenty".