52543134440 has 32 divisors (see below), whose sum is σ = 118396739880. Its totient is φ = 20986198272.

The previous prime is 52543134367. The next prime is 52543134491. The reversal of 52543134440 is 4443134525.

52543134440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 48689952964 + 3853181476 = 220658^2 + 62074^2 .

It is a super-2 number, since 2×52543134440² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52543134440.

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, 943067 + ... + 997226.

Almost surely, 2^52543134440 is an apocalyptic number.

It is an amenable number.

52543134440 is an abundant number, since it is smaller than the sum of its proper divisors (65853605440).

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

52543134440 is a wasteful number, since it uses less digits than its factorization.

52543134440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940981 (or 1940977 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 52543134440 its reverse (4443134525), we get a palindrome (56986268965).

The spelling of 52543134440 in words is "fifty-two billion, five hundred forty-three million, one hundred thirty-four thousand, four hundred forty".