520213522 has 16 divisors (see below), whose sum is σ = 793249632. Its totient is φ = 255830400.

The previous prime is 520213487. The next prime is 520213543. The reversal of 520213522 is 225312025.

It is a junction number, because it is equal to n+sod(n) for n = 520213493 and 520213502.

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, 23397 + ... + 39847.

It is an arithmetic number, because the mean of its divisors is an integer number (49578102).

Almost surely, 2^520213522 is an apocalyptic number.

520213522 is a deficient number, since it is larger than the sum of its proper divisors (273036110).

520213522 is a wasteful number, since it uses less digits than its factorization.

520213522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16713.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 520213522 is about 22808.1898010342. The cubic root of 520213522 is about 804.2552024774.

Adding to 520213522 its reverse (225312025), we get a palindrome (745525547).

The spelling of 520213522 in words is "five hundred twenty million, two hundred thirteen thousand, five hundred twenty-two".