52015245312 has 96 divisors (see below), whose sum is σ = 138870426240. Its totient is φ = 17313792000.

The previous prime is 52015245307. The next prime is 52015245323. The reversal of 52015245312 is 21354251025.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 52015245312.

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, 4608508 + ... + 4619780.

It is an arithmetic number, because the mean of its divisors is an integer number (1446566940).

Almost surely, 2^52015245312 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 52015245312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69435213120).

52015245312 is an abundant number, since it is smaller than the sum of its proper divisors (86855180928).

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

52015245312 is a wasteful number, since it uses less digits than its factorization.

52015245312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12049 (or 12029 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 52015245312 its reverse (21354251025), we get a palindrome (73369496337).

The spelling of 52015245312 in words is "fifty-two billion, fifteen million, two hundred forty-five thousand, three hundred twelve".