521422052304 has 20 divisors (see below), whose sum is σ = 1347006968576. Its totient is φ = 173807350752.

The previous prime is 521422052267. The next prime is 521422052311. The reversal of 521422052304 is 403250224125.

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, 5431479664 + ... + 5431479759.

Almost surely, 2^521422052304 is an apocalyptic number.

It is an amenable number.

521422052304 is an abundant number, since it is smaller than the sum of its proper divisors (825584916272).

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

521422052304 is a wasteful number, since it uses less digits than its factorization.

521422052304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10862959434 (or 10862959428 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 521422052304 its reverse (403250224125), we get a palindrome (924672276429).

The spelling of 521422052304 in words is "five hundred twenty-one billion, four hundred twenty-two million, fifty-two thousand, three hundred four".