522997888 has 64 divisors (see below), whose sum is σ = 1198393920. Its totient is φ = 222704640.

The previous prime is 522997879. The next prime is 522997903. The reversal of 522997888 is 888799225.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144258 + ... + 147838.

It is an arithmetic number, because the mean of its divisors is an integer number (18724905).

Almost surely, 2^522997888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522997888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599196960).

522997888 is an abundant number, since it is smaller than the sum of its proper divisors (675396032).

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

522997888 is a wasteful number, since it uses less digits than its factorization.

522997888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765 (or 3753 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 58.

The square root of 522997888 is about 22869.1470763560. The cubic root of 522997888 is about 805.6875357645.

The spelling of 522997888 in words is "five hundred twenty-two million, nine hundred ninety-seven thousand, eight hundred eighty-eight".