522065503642 has 4 divisors (see below), whose sum is σ = 783098255466. Its totient is φ = 261032751820.

The previous prime is 522065503639. The next prime is 522065503643. The reversal of 522065503642 is 246305560225.

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., 424516099401 + 97549404241 = 651549^2 + 312329^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 522065503595 and 522065503604.

It is not an unprimeable number, because it can be changed into a prime (522065503643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130516375909 + ... + 130516375912.

Almost surely, 2^522065503642 is an apocalyptic number.

522065503642 is a deficient number, since it is larger than the sum of its proper divisors (261032751824).

522065503642 is a wasteful number, since it uses less digits than its factorization.

522065503642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261032751823.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 522065503642 in words is "five hundred twenty-two billion, sixty-five million, five hundred three thousand, six hundred forty-two".