52543747518 has 32 divisors (see below), whose sum is σ = 105595075872. Its totient is φ = 17430067200.

The previous prime is 52543747511. The next prime is 52543747523. The reversal of 52543747518 is 81574734525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52543747511) 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, 2900208 + ... + 2918268.

It is an arithmetic number, because the mean of its divisors is an integer number (3299846121).

Almost surely, 2^52543747518 is an apocalyptic number.

52543747518 is an abundant number, since it is smaller than the sum of its proper divisors (53051328354).

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

52543747518 is a wasteful number, since it uses less digits than its factorization.

52543747518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20380.

The product of its digits is 4704000, while the sum is 51.

The spelling of 52543747518 in words is "fifty-two billion, five hundred forty-three million, seven hundred forty-seven thousand, five hundred eighteen".