52533661236 has 96 divisors (see below), whose sum is σ = 143567305728. Its totient is φ = 14638095360.

The previous prime is 52533661217. The next prime is 52533661291. The reversal of 52533661236 is 63216633525.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420071 + ... + 2441681.

It is an arithmetic number, because the mean of its divisors is an integer number (1495492768).

Almost surely, 2^52533661236 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 52533661236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71783652864).

52533661236 is an abundant number, since it is smaller than the sum of its proper divisors (91033644492).

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

52533661236 is a wasteful number, since it uses less digits than its factorization.

52533661236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22341 (or 22339 counting only the distinct ones).

The product of its digits is 583200, while the sum is 42.

The spelling of 52533661236 in words is "fifty-two billion, five hundred thirty-three million, six hundred sixty-one thousand, two hundred thirty-six".