5171520500 has 48 divisors (see below), whose sum is σ = 11323485264. Its totient is φ = 2063318400.

The previous prime is 5171520493. The next prime is 5171520509. The reversal of 5171520500 is 50251715.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 549152356 + 4622368144 = 23434^2 + 67988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5171520500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171520509) 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, 185474 + ... + 211526.

It is an arithmetic number, because the mean of its divisors is an integer number (235905943).

Almost surely, 2^5171520500 is an apocalyptic number.

5171520500 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 5171520500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5661742632).

5171520500 is an abundant number, since it is smaller than the sum of its proper divisors (6151964764).

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

5171520500 is a wasteful number, since it uses less digits than its factorization.

5171520500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26469 (or 26457 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 5171520500 is about 71913.2845863683. The cubic root of 5171520500 is about 1729.3095911926.

The spelling of 5171520500 in words is "five billion, one hundred seventy-one million, five hundred twenty thousand, five hundred".