522012020 has 12 divisors (see below), whose sum is σ = 1096225284. Its totient is φ = 208804800.

The previous prime is 522012011. The next prime is 522012067. The reversal of 522012020 is 20210225.

It can be written as a sum of positive squares in 2 ways, for example, as 391960804 + 130051216 = 19798^2 + 11404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 522011986 and 522012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13050281 + ... + 13050320.

It is an arithmetic number, because the mean of its divisors is an integer number (91352107).

Almost surely, 2^522012020 is an apocalyptic number.

It is an amenable number.

522012020 is an abundant number, since it is smaller than the sum of its proper divisors (574213264).

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

522012020 is a wasteful number, since it uses less digits than its factorization.

522012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26100610 (or 26100608 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 522012020 is about 22847.5823666313. The cubic root of 522012020 is about 805.1809682775.

Adding to 522012020 its reverse (20210225), we get a palindrome (542222245).

The spelling of 522012020 in words is "five hundred twenty-two million, twelve thousand, twenty".