522575540 has 48 divisors (see below), whose sum is σ = 1111093200. Its totient is φ = 206441472.

The previous prime is 522575519. The next prime is 522575551. The reversal of 522575540 is 45575225.

It can be written as a sum of positive squares in 8 ways, for example, as 118243876 + 404331664 = 10874^2 + 20108^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 522575540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736706 + ... + 737414.

It is an arithmetic number, because the mean of its divisors is an integer number (23147775).

Almost surely, 2^522575540 is an apocalyptic number.

It is an amenable number.

522575540 is an abundant number, since it is smaller than the sum of its proper divisors (588517660).

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

522575540 is a wasteful number, since it uses less digits than its factorization.

522575540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 522575540 is about 22859.9111984277. The cubic root of 522575540 is about 805.4705991596.

The spelling of 522575540 in words is "five hundred twenty-two million, five hundred seventy-five thousand, five hundred forty".