520332997 has 2 divisors, whose sum is σ = 520332998. Its totient is φ = 520332996.

The previous prime is 520332983. The next prime is 520333003. The reversal of 520332997 is 799233025.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503284356 + 17048641 = 22434^2 + 4129^2 .

It is a cyclic number.

It is not a de Polignac number, because 520332997 - 2¹¹ = 520330949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520332907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260166498 + 260166499.

It is an arithmetic number, because the mean of its divisors is an integer number (260166499).

Almost surely, 2^520332997 is an apocalyptic number.

It is an amenable number.

520332997 is a deficient number, since it is larger than the sum of its proper divisors (1).

520332997 is an equidigital number, since it uses as much as digits as its factorization.

520332997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 520332997 is about 22810.8087756660. The cubic root of 520332997 is about 804.3167676048.

The spelling of 520332997 in words is "five hundred twenty million, three hundred thirty-two thousand, nine hundred ninety-seven".