522661968 has 30 divisors (see below), whose sum is σ = 1462727994. Its totient is φ = 174220608.

The previous prime is 522661961. The next prime is 522661999. The reversal of 522661968 is 869166225.

522661968 is a `hidden beast` number, since 5 + 2 + 26 + 619 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 359026704 + 163635264 = 18948^2 + 12792^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522661961) 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 5 ways as a sum of consecutive naturals, for example, 1814655 + ... + 1814942.

Almost surely, 2^522661968 is an apocalyptic number.

It is an amenable number.

522661968 is an abundant number, since it is smaller than the sum of its proper divisors (940066026).

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

522661968 is a wasteful number, since it uses less digits than its factorization.

522661968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629611 (or 3629602 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 522661968 is about 22861.8015038185. The cubic root of 522661968 is about 805.5150019111.

The spelling of 522661968 in words is "five hundred twenty-two million, six hundred sixty-one thousand, nine hundred sixty-eight".