52515563652 has 120 divisors (see below), whose sum is σ = 138622323840. Its totient is φ = 17335581120.

The previous prime is 52515563591. The next prime is 52515563677. The reversal of 52515563652 is 25636551525.

52515563652 is a `hidden beast` number, since 5 + 2 + 5 + 1 + 5 + 5 + 636 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 52515563598 and 52515563607.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16835749 + ... + 16838867.

It is an arithmetic number, because the mean of its divisors is an integer number (1155186032).

Almost surely, 2^52515563652 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 52515563652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69311161920).

52515563652 is an abundant number, since it is smaller than the sum of its proper divisors (86106760188).

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

52515563652 is a wasteful number, since it uses less digits than its factorization.

52515563652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623 (or 3612 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 45.

The spelling of 52515563652 in words is "fifty-two billion, five hundred fifteen million, five hundred sixty-three thousand, six hundred fifty-two".