522041520 has 640 divisors, whose sum is σ = 2267854848. Its totient is φ = 95846400.

The previous prime is 522041483. The next prime is 522041537. The reversal of 522041520 is 25140225.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9849814 + ... + 9849866.

Almost surely, 2^522041520 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 522041520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133927424).

522041520 is an abundant number, since it is smaller than the sum of its proper divisors (1745813328).

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

522041520 is a wasteful number, since it uses less digits than its factorization.

522041520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 522041520 is about 22848.2279400395. The cubic root of 522041520 is about 805.1961354832.

Adding to 522041520 its reverse (25140225), we get a palindrome (547181745).

The spelling of 522041520 in words is "five hundred twenty-two million, forty-one thousand, five hundred twenty".