520532404100 has 72 divisors (see below), whose sum is σ = 1148734325256. Its totient is φ = 204681600000.

The previous prime is 520532404037. The next prime is 520532404141. The reversal of 520532404100 is 1404235025.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 272626002496 + 247906401604 = 522136^2 + 497902^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 520532404100.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10962410 + ... + 11009790.

Almost surely, 2^520532404100 is an apocalyptic number.

520532404100 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 520532404100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574367162628).

520532404100 is an abundant number, since it is smaller than the sum of its proper divisors (628201921156).

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

520532404100 is a wasteful number, since it uses less digits than its factorization.

520532404100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49257 (or 49250 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 520532404100 its reverse (1404235025), we get a palindrome (521936639125).

The spelling of 520532404100 in words is "five hundred twenty billion, five hundred thirty-two million, four hundred four thousand, one hundred".