522021313652 has 12 divisors (see below), whose sum is σ = 918640860480. Its totient is φ = 259552496376.

The previous prime is 522021313621. The next prime is 522021313673. The reversal of 522021313652 is 256313120225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364539308 + ... + 364540739.

It is an arithmetic number, because the mean of its divisors is an integer number (76553405040).

Almost surely, 2^522021313652 is an apocalyptic number.

It is an amenable number.

522021313652 is a deficient number, since it is larger than the sum of its proper divisors (396619546828).

522021313652 is a wasteful number, since it uses less digits than its factorization.

522021313652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729080230 (or 729080228 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 522021313652 its reverse (256313120225), we get a palindrome (778334433877).

The spelling of 522021313652 in words is "five hundred twenty-two billion, twenty-one million, three hundred thirteen thousand, six hundred fifty-two".