520512133 has 2 divisors, whose sum is σ = 520512134. Its totient is φ = 520512132.

The previous prime is 520512107. The next prime is 520512217. The reversal of 520512133 is 331215025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 464531809 + 55980324 = 21553^2 + 7482^2 .

It is a cyclic number.

It is not a de Polignac number, because 520512133 - 2²⁵ = 486957701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520512233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260256066 + 260256067.

It is an arithmetic number, because the mean of its divisors is an integer number (260256067).

Almost surely, 2^520512133 is an apocalyptic number.

It is an amenable number.

520512133 is a deficient number, since it is larger than the sum of its proper divisors (1).

520512133 is an equidigital number, since it uses as much as digits as its factorization.

520512133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 520512133 is about 22814.7349973652. The cubic root of 520512133 is about 804.4090582199.

Adding to 520512133 its reverse (331215025), we get a palindrome (851727158).

The spelling of 520512133 in words is "five hundred twenty million, five hundred twelve thousand, one hundred thirty-three".