520505522 has 4 divisors (see below), whose sum is σ = 780758286. Its totient is φ = 260252760.

The previous prime is 520505443. The next prime is 520505539. The reversal of 520505522 is 225505025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 511619161 + 8886361 = 22619^2 + 2981^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520505491 and 520505500.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 130126379 + ... + 130126382.

Almost surely, 2^520505522 is an apocalyptic number.

520505522 is a deficient number, since it is larger than the sum of its proper divisors (260252764).

520505522 is a wasteful number, since it uses less digits than its factorization.

520505522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260252763.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 520505522 is about 22814.5901124697. The cubic root of 520505522 is about 804.4056526184.

The spelling of 520505522 in words is "five hundred twenty million, five hundred five thousand, five hundred twenty-two".