520406933 has 2 divisors, whose sum is σ = 520406934. Its totient is φ = 520406932.

The previous prime is 520406917. The next prime is 520406959. The reversal of 520406933 is 339604025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486511249 + 33895684 = 22057^2 + 5822^2 .

It is a cyclic number.

It is not a de Polignac number, because 520406933 - 2⁴ = 520406917 is a prime.

It is a super-3 number, since 3×520406933³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520406933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520406233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260203466 + 260203467.

It is an arithmetic number, because the mean of its divisors is an integer number (260203467).

Almost surely, 2^520406933 is an apocalyptic number.

It is an amenable number.

520406933 is a deficient number, since it is larger than the sum of its proper divisors (1).

520406933 is an equidigital number, since it uses as much as digits as its factorization.

520406933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 520406933 is about 22812.4293533153. The cubic root of 520406933 is about 804.3548618946.

The spelling of 520406933 in words is "five hundred twenty million, four hundred six thousand, nine hundred thirty-three".