520214873 has 2 divisors, whose sum is σ = 520214874. Its totient is φ = 520214872.

The previous prime is 520214869. The next prime is 520214887. The reversal of 520214873 is 378412025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448253584 + 71961289 = 21172^2 + 8483^2 .

It is a cyclic number.

It is not a de Polignac number, because 520214873 - 2² = 520214869 is a prime.

It is a super-2 number, since 2×520214873² = 541247028180812258, which contains 22 as substring.

It is equal to p_27363371 and since 520214873 and 27363371 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 (520214833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260107436 + 260107437.

It is an arithmetic number, because the mean of its divisors is an integer number (260107437).

Almost surely, 2^520214873 is an apocalyptic number.

It is an amenable number.

520214873 is a deficient number, since it is larger than the sum of its proper divisors (1).

520214873 is an equidigital number, since it uses as much as digits as its factorization.

520214873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 520214873 is about 22808.2194175696. The cubic root of 520214873 is about 804.2558986966.

Adding to 520214873 its reverse (378412025), we get a palindrome (898626898).

The spelling of 520214873 in words is "five hundred twenty million, two hundred fourteen thousand, eight hundred seventy-three".