520205051 has 2 divisors, whose sum is σ = 520205052. Its totient is φ = 520205050.

The previous prime is 520205033. The next prime is 520205057. The reversal of 520205051 is 150502025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520205051 - 2¹⁴ = 520188667 is a prime.

It is a super-2 number, since 2×520205051² = 541226590171825202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520205057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260102525 + 260102526.

It is an arithmetic number, because the mean of its divisors is an integer number (260102526).

Almost surely, 2^520205051 is an apocalyptic number.

520205051 is a deficient number, since it is larger than the sum of its proper divisors (1).

520205051 is an equidigital number, since it uses as much as digits as its factorization.

520205051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 520205051 is about 22808.0040994384. The cubic root of 520205051 is about 804.2508370374.

Adding to 520205051 its reverse (150502025), we get a palindrome (670707076).

The spelling of 520205051 in words is "five hundred twenty million, two hundred five thousand, fifty-one".