52071001216 has 64 divisors (see below), whose sum is σ = 111826665720. Its totient is φ = 24008712192.

The previous prime is 52071001183. The next prime is 52071001217. The reversal of 52071001216 is 61210017025.

It can be written as a sum of positive squares in 4 ways, for example, as 46638721600 + 5432279616 = 215960^2 + 73704^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×52071001216² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52071001217) 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, 1703766 + ... + 1734058.

Almost surely, 2^52071001216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52071001216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55913332860).

52071001216 is an abundant number, since it is smaller than the sum of its proper divisors (59755664504).

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

52071001216 is a wasteful number, since it uses less digits than its factorization.

52071001216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31353 (or 31341 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The spelling of 52071001216 in words is "fifty-two billion, seventy-one million, one thousand, two hundred sixteen".