52543215220 has 48 divisors (see below), whose sum is σ = 116280440640. Its totient is φ = 19888436736.

The previous prime is 52543215217. The next prime is 52543215227. The reversal of 52543215220 is 2251234525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52543215227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257244 + ... + 413836.

It is an arithmetic number, because the mean of its divisors is an integer number (2422509180).

Almost surely, 2^52543215220 is an apocalyptic number.

It is an amenable number.

52543215220 is an abundant number, since it is smaller than the sum of its proper divisors (63737225420).

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

52543215220 is a wasteful number, since it uses less digits than its factorization.

52543215220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157504 (or 157502 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 52543215220 its reverse (2251234525), we get a palindrome (54794449745).

The spelling of 52543215220 in words is "fifty-two billion, five hundred forty-three million, two hundred fifteen thousand, two hundred twenty".