522251423343252 has 72 divisors (see below), whose sum is σ = 1343583003934080. Its totient is φ = 170999516761920.

The previous prime is 522251423343241. The next prime is 522251423343269. The reversal of 522251423343252 is 252343324152225.

522251423343252 is a `hidden beast` number, since 5 + 2 + 2 + 2 + 51 + 4 + 2 + 3 + 343 + 252 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 522251423343198 and 522251423343207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158408352 + ... + 161671607.

It is an arithmetic number, because the mean of its divisors is an integer number (18660875054640).

Almost surely, 2^{522251423343252} is an apocalyptic number.

It is an amenable number.

522251423343252 is an abundant number, since it is smaller than the sum of its proper divisors (821331580590828).

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

522251423343252 is a wasteful number, since it uses less digits than its factorization.

522251423343252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320080773 (or 320080768 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 45.

Adding to 522251423343252 its reverse (252343324152225), we get a palindrome (774594747495477).

The spelling of 522251423343252 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 fifty-two".