522011648 has 66 divisors (see below), whose sum is σ = 1068644538. Its totient is φ = 254853120.

The previous prime is 522011627. The next prime is 522011653. The reversal of 522011648 is 846110225.

It can be written as a sum of positive squares in 3 ways, for example, as 14500864 + 507510784 = 3808^2 + 22528^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 522011648.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 3810236 + ... + 3810372.

Almost surely, 2^522011648 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 522011648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534322269).

522011648 is an abundant number, since it is smaller than the sum of its proper divisors (546632890).

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

522011648 is an equidigital number, since it uses as much as digits as its factorization.

522011648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 522011648 is about 22847.5742257247. The cubic root of 522011648 is about 805.1807770128.

The spelling of 522011648 in words is "five hundred twenty-two million, eleven thousand, six hundred forty-eight".