520012547 has 2 divisors, whose sum is σ = 520012548. Its totient is φ = 520012546.

The previous prime is 520012529. The next prime is 520012567. The reversal of 520012547 is 745210025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520012547 - 2⁸ = 520012291 is a prime.

It is not a weakly prime, because it can be changed into another prime (520012517) 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, 260006273 + 260006274.

It is an arithmetic number, because the mean of its divisors is an integer number (260006274).

Almost surely, 2^520012547 is an apocalyptic number.

520012547 is a deficient number, since it is larger than the sum of its proper divisors (1).

520012547 is an equidigital number, since it uses as much as digits as its factorization.

520012547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 520012547 is about 22803.7836114975. The cubic root of 520012547 is about 804.1516193640.

The spelling of 520012547 in words is "five hundred twenty million, twelve thousand, five hundred forty-seven".