52218781936 has 40 divisors (see below), whose sum is σ = 107311881600. Its totient is φ = 24546375360.

The previous prime is 52218781931. The next prime is 52218781957. The reversal of 52218781936 is 63918781225.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52218781931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615796 + ... + 695443.

It is an arithmetic number, because the mean of its divisors is an integer number (2682797040).

Almost surely, 2^52218781936 is an apocalyptic number.

It is an amenable number.

52218781936 is an abundant number, since it is smaller than the sum of its proper divisors (55093099664).

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

52218781936 is a wasteful number, since it uses less digits than its factorization.

52218781936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311397 (or 1311391 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The spelling of 52218781936 in words is "fifty-two billion, two hundred eighteen million, seven hundred eighty-one thousand, nine hundred thirty-six".