52565544500 has 96 divisors (see below), whose sum is σ = 131427878400. Its totient is φ = 17991667200.

The previous prime is 52565544463. The next prime is 52565544503. The reversal of 52565544500 is 544556525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52565544503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2083964 + ... + 2109036.

It is an arithmetic number, because the mean of its divisors is an integer number (1369040400).

Almost surely, 2^52565544500 is an apocalyptic number.

52565544500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52565544500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65713939200).

52565544500 is an abundant number, since it is smaller than the sum of its proper divisors (78862333900).

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

52565544500 is a wasteful number, since it uses less digits than its factorization.

52565544500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25698 (or 25686 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 52565544500 in words is "fifty-two billion, five hundred sixty-five million, five hundred forty-four thousand, five hundred".