52021528016 has 20 divisors (see below), whose sum is σ = 100806889092. Its totient is φ = 26006846976.

The previous prime is 52021527979. The next prime is 52021528019. The reversal of 52021528016 is 61082512025.

It can be written as a sum of positive squares in 2 ways, for example, as 48310281616 + 3711246400 = 219796^2 + 60920^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021528019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133721 + ... + 349176.

Almost surely, 2^52021528016 is an apocalyptic number.

It is an amenable number.

52021528016 is a deficient number, since it is larger than the sum of its proper divisors (48785361076).

52021528016 is a wasteful number, since it uses less digits than its factorization.

52021528016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489638 (or 489632 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 52021528016 in words is "fifty-two billion, twenty-one million, five hundred twenty-eight thousand, sixteen".