520331479 has 2 divisors, whose sum is σ = 520331480. Its totient is φ = 520331478.

The previous prime is 520331459. The next prime is 520331489. The reversal of 520331479 is 974133025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520331479 - 2¹¹ = 520329431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520331459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260165739 + 260165740.

It is an arithmetic number, because the mean of its divisors is an integer number (260165740).

Almost surely, 2^520331479 is an apocalyptic number.

520331479 is a deficient number, since it is larger than the sum of its proper divisors (1).

520331479 is an equidigital number, since it uses as much as digits as its factorization.

520331479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 520331479 is about 22810.7755019421. The cubic root of 520331479 is about 804.3159854428.

The spelling of 520331479 in words is "five hundred twenty million, three hundred thirty-one thousand, four hundred seventy-nine".