522251423343240 has 32 divisors (see below), whose sum is σ = 1566754270030080. Its totient is φ = 139267046224832.

The previous prime is 522251423343211. The next prime is 522251423343241. The reversal of 522251423343240 is 42343324152225.

It is a junction number, because it is equal to n+sod(n) for n = 522251423343192 and 522251423343201.

It is not an unprimeable number, because it can be changed into a prime (522251423343241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176047597144 + ... + 2176047597383.

It is an arithmetic number, because the mean of its divisors is an integer number (48961070938440).

Almost surely, 2^{522251423343240} is an apocalyptic number.

It is an amenable number.

522251423343240 is an abundant number, since it is smaller than the sum of its proper divisors (1044502846686840).

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

522251423343240 is a wasteful number, since it uses less digits than its factorization.

522251423343240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352095194541 (or 4352095194537 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 42.

Adding to 522251423343240 its reverse (42343324152225), we get a palindrome (564594747495465).

The spelling of 522251423343240 in words is "five hundred twenty-two trillion, two hundred fifty-one billion, four hundred twenty-three million, three hundred forty-three thousand, two hundred forty".