522323513140 has 48 divisors (see below), whose sum is σ = 1288641513600. Its totient is φ = 175325374080.

The previous prime is 522323513137. The next prime is 522323513141. The reversal of 522323513140 is 41315323225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522323513141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91312440 + ... + 91318159.

It is an arithmetic number, because the mean of its divisors is an integer number (26846698200).

Almost surely, 2^522323513140 is an apocalyptic number.

It is an amenable number.

522323513140 is an abundant number, since it is smaller than the sum of its proper divisors (766318000460).

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

522323513140 is a wasteful number, since it uses less digits than its factorization.

522323513140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182630632 (or 182630630 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 522323513140 its reverse (41315323225), we get a palindrome (563638836365).

The spelling of 522323513140 in words is "five hundred twenty-two billion, three hundred twenty-three million, five hundred thirteen thousand, one hundred forty".