520005326172 has 24 divisors (see below), whose sum is σ = 1213363973136. Its totient is φ = 173332507008.

The previous prime is 520005326119. The next prime is 520005326213. The reversal of 520005326172 is 271623500025.

It is a congruent number.

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, 616698 + ... + 1191774.

It is an arithmetic number, because the mean of its divisors is an integer number (50556832214).

Almost surely, 2^520005326172 is an apocalyptic number.

It is an amenable number.

520005326172 is an abundant number, since it is smaller than the sum of its proper divisors (693358646964).

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

520005326172 is a wasteful number, since it uses less digits than its factorization.

520005326172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650437 (or 650435 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

Adding to 520005326172 its reverse (271623500025), we get a palindrome (791628826197).

It can be divided in two parts, 5200053 and 26172, that added together give a palindrome (5226225).

The spelling of 520005326172 in words is "five hundred twenty billion, five million, three hundred twenty-six thousand, one hundred seventy-two".