520220400200 has 36 divisors (see below), whose sum is σ = 1209536146395. Its totient is φ = 208084080000.

The previous prime is 520220400169. The next prime is 520220400209. The reversal of 520220400200 is 2004022025.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 355580845636 + 164639554564 = 596306^2 + 405758^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=510010.

It is not an unprimeable number, because it can be changed into a prime (520220400209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10174700 + ... + 10225700.

Almost surely, 2^520220400200 is an apocalyptic number.

520220400200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520220400200 is an abundant number, since it is smaller than the sum of its proper divisors (689315746195).

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

520220400200 is an frugal number, since it uses more digits than its factorization.

520220400200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102018 (or 51008 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 520220400200 its reverse (2004022025), we get a palindrome (522224422225).

The spelling of 520220400200 in words is "five hundred twenty billion, two hundred twenty million, four hundred thousand, two hundred".