520248973 has 2 divisors, whose sum is σ = 520248974. Its totient is φ = 520248972.

The previous prime is 520248947. The next prime is 520248991. The reversal of 520248973 is 379842025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498093124 + 22155849 = 22318^2 + 4707^2 .

It is a cyclic number.

It is not a de Polignac number, because 520248973 - 2⁵ = 520248941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520248173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260124486 + 260124487.

It is an arithmetic number, because the mean of its divisors is an integer number (260124487).

Almost surely, 2^520248973 is an apocalyptic number.

It is an amenable number.

520248973 is a deficient number, since it is larger than the sum of its proper divisors (1).

520248973 is an equidigital number, since it uses as much as digits as its factorization.

520248973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 520248973 is about 22808.9669428495. The cubic root of 520248973 is about 804.2734712602.

The spelling of 520248973 in words is "five hundred twenty million, two hundred forty-eight thousand, nine hundred seventy-three".