522855380 has 18 divisors (see below), whose sum is σ = 1098211086. Its totient is φ = 209101248.

The previous prime is 522855353. The next prime is 522855391. The reversal of 522855380 is 83558225.

It can be written as a sum of positive squares in 3 ways, for example, as 66520336 + 456335044 = 8156^2 + 21362^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99704 + ... + 104816.

It is an arithmetic number, because the mean of its divisors is an integer number (61011727).

Almost surely, 2^522855380 is an apocalyptic number.

It is an amenable number.

522855380 is an abundant number, since it is smaller than the sum of its proper divisors (575355706).

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

522855380 is an frugal number, since it uses more digits than its factorization.

522855380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235 (or 5120 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 522855380 is about 22866.0311379128. The cubic root of 522855380 is about 805.6143504151.

The spelling of 522855380 in words is "five hundred twenty-two million, eight hundred fifty-five thousand, three hundred eighty".