520412773 has 2 divisors, whose sum is σ = 520412774. Its totient is φ = 520412772.

The previous prime is 520412759. The next prime is 520412813. The reversal of 520412773 is 377214025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508141764 + 12271009 = 22542^2 + 3503^2 .

It is a cyclic number.

It is not a de Polignac number, because 520412773 - 2¹³ = 520404581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520410773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260206386 + 260206387.

It is an arithmetic number, because the mean of its divisors is an integer number (260206387).

Almost surely, 2^520412773 is an apocalyptic number.

It is an amenable number.

520412773 is a deficient number, since it is larger than the sum of its proper divisors (1).

520412773 is an equidigital number, since it uses as much as digits as its factorization.

520412773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 520412773 is about 22812.5573533526. The cubic root of 520412773 is about 804.3578707034.

Adding to 520412773 its reverse (377214025), we get a palindrome (897626798).

The spelling of 520412773 in words is "five hundred twenty million, four hundred twelve thousand, seven hundred seventy-three".