522448020 has 36 divisors (see below), whose sum is σ = 1584759540. Its totient is φ = 139319424.

The previous prime is 522448001. The next prime is 522448037. The reversal of 522448020 is 20844225.

It is a happy number.

522448020 is a `hidden beast` number, since 522 + 44 + 80 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 340845444 + 181602576 = 18462^2 + 13476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1451065 + ... + 1451424.

Almost surely, 2^522448020 is an apocalyptic number.

It is an amenable number.

522448020 is an abundant number, since it is smaller than the sum of its proper divisors (1062311520).

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

522448020 is a wasteful number, since it uses less digits than its factorization.

522448020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902504 (or 2902499 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 522448020 is about 22857.1218660618. The cubic root of 522448020 is about 805.4050762774.

The spelling of 522448020 in words is "five hundred twenty-two million, four hundred forty-eight thousand, twenty".