522521652 has 24 divisors (see below), whose sum is σ = 1261260000. Its totient is φ = 168167776.

The previous prime is 522521651. The next prime is 522521683. The reversal of 522521652 is 256125225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522521651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750402 + ... + 751097.

It is an arithmetic number, because the mean of its divisors is an integer number (52552500).

Almost surely, 2^522521652 is an apocalyptic number.

It is an amenable number.

522521652 is an abundant number, since it is smaller than the sum of its proper divisors (738738348).

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

522521652 is a wasteful number, since it uses less digits than its factorization.

522521652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501535 (or 1501533 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 522521652 is about 22858.7325107933. The cubic root of 522521652 is about 805.4429114932.

Adding to 522521652 its reverse (256125225), we get a palindrome (778646877).

The spelling of 522521652 in words is "five hundred twenty-two million, five hundred twenty-one thousand, six hundred fifty-two".