520449697 has 2 divisors, whose sum is σ = 520449698. Its totient is φ = 520449696.

The previous prime is 520449623. The next prime is 520449707. The reversal of 520449697 is 796944025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289136016 + 231313681 = 17004^2 + 15209^2 .

It is a cyclic number.

It is not a de Polignac number, because 520449697 - 2¹¹ = 520447649 is a prime.

It is not a weakly prime, because it can be changed into another prime (520449617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260224848 + 260224849.

It is an arithmetic number, because the mean of its divisors is an integer number (260224849).

Almost surely, 2^520449697 is an apocalyptic number.

It is an amenable number.

520449697 is a deficient number, since it is larger than the sum of its proper divisors (1).

520449697 is an equidigital number, since it uses as much as digits as its factorization.

520449697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 520449697 is about 22813.3666301140. The cubic root of 520449697 is about 804.3768936849.

The spelling of 520449697 in words is "five hundred twenty million, four hundred forty-nine thousand, six hundred ninety-seven".