522379520 has 72 divisors (see below), whose sum is σ = 1347556056. Its totient is φ = 192872448.

The previous prime is 522379513. The next prime is 522379541. The reversal of 522379520 is 25973225.

It can be written as a sum of positive squares in 4 ways, for example, as 108826624 + 413552896 = 10432^2 + 20336^2 .

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, 944 + ... + 32336.

Almost surely, 2^522379520 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 522379520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673778028).

522379520 is an abundant number, since it is smaller than the sum of its proper divisors (825176536).

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

522379520 is a wasteful number, since it uses less digits than its factorization.

522379520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31427 (or 31413 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 522379520 is about 22855.6233780661. The cubic root of 522379520 is about 805.3698749068.

The spelling of 522379520 in words is "five hundred twenty-two million, three hundred seventy-nine thousand, five hundred twenty".