520212241 has 2 divisors, whose sum is σ = 520212242. Its totient is φ = 520212240.

The previous prime is 520212239. The next prime is 520212293. The reversal of 520212241 is 142212025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488233216 + 31979025 = 22096^2 + 5655^2 .

It is a cyclic number.

It is not a de Polignac number, because 520212241 - 2¹ = 520212239 is a prime.

Together with 520212239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (520212221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260106120 + 260106121.

It is an arithmetic number, because the mean of its divisors is an integer number (260106121).

Almost surely, 2^520212241 is an apocalyptic number.

It is an amenable number.

520212241 is a deficient number, since it is larger than the sum of its proper divisors (1).

520212241 is an equidigital number, since it uses as much as digits as its factorization.

520212241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 520212241 is about 22808.1617189987. The cubic root of 520212241 is about 804.2545423307.

Adding to 520212241 its reverse (142212025), we get a palindrome (662424266).

The spelling of 520212241 in words is "five hundred twenty million, two hundred twelve thousand, two hundred forty-one".