520222025 has 6 divisors (see below), whose sum is σ = 645075342. Its totient is φ = 416177600.

The previous prime is 520221983. The next prime is 520222061.

It is a happy number.

520222025 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 17161 + 520204864 = 131^2 + 22808^2 .

It is not a de Polignac number, because 520222025 - 2²⁰ = 519173449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520221988 and 520222006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10404416 + ... + 10404465.

It is an arithmetic number, because the mean of its divisors is an integer number (107512557).

Almost surely, 2^520222025 is an apocalyptic number.

It is an amenable number.

520222025 is a deficient number, since it is larger than the sum of its proper divisors (124853317).

520222025 is a wasteful number, since it uses less digits than its factorization.

520222025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20808891 (or 20808886 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 520222025 is about 22808.3762026147. The cubic root of 520222025 is about 804.2595843606.

The spelling of 520222025 in words is "five hundred twenty million, two hundred twenty-two thousand, twenty-five".