5205723872 has 48 divisors (see below), whose sum is σ = 10460378880. Its totient is φ = 2549442432.

The previous prime is 5205723871. The next prime is 5205723907. The reversal of 5205723872 is 2783275025.

It is a super-2 number, since 2×5205723872² = 54199122063021344768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205723871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529433 + ... + 539175.

It is an arithmetic number, because the mean of its divisors is an integer number (217924560).

Almost surely, 2^5205723872 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 5205723872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5230189440).

5205723872 is an abundant number, since it is smaller than the sum of its proper divisors (5254655008).

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

5205723872 is a wasteful number, since it uses less digits than its factorization.

5205723872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095 (or 10087 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 5205723872 is about 72150.7025052425. The cubic root of 5205723872 is about 1733.1136496074.

Adding to 5205723872 its reverse (2783275025), we get a palindrome (7988998897).

The spelling of 5205723872 in words is "five billion, two hundred five million, seven hundred twenty-three thousand, eight hundred seventy-two".