520028771 has 2 divisors, whose sum is σ = 520028772. Its totient is φ = 520028770.

The previous prime is 520028723. The next prime is 520028777. The reversal of 520028771 is 177820025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520028771 - 2¹⁰ = 520027747 is a prime.

It is equal to p_27354119 and since 520028771 and 27354119 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (520028777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260014385 + 260014386.

It is an arithmetic number, because the mean of its divisors is an integer number (260014386).

Almost surely, 2^520028771 is an apocalyptic number.

520028771 is a deficient number, since it is larger than the sum of its proper divisors (1).

520028771 is an equidigital number, since it uses as much as digits as its factorization.

520028771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 520028771 is about 22804.1393391638. The cubic root of 520028771 is about 804.1599822521.

Adding to 520028771 its reverse (177820025), we get a palindrome (697848796).

The spelling of 520028771 in words is "five hundred twenty million, twenty-eight thousand, seven hundred seventy-one".