520432427 has 2 divisors, whose sum is σ = 520432428. Its totient is φ = 520432426.

The previous prime is 520432379. The next prime is 520432447. The reversal of 520432427 is 724234025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520432427 - 2¹⁰ = 520431403 is a prime.

It is a super-2 number, since 2×520432427² = 541699822146220658, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520432427.

It is not a weakly prime, because it can be changed into another prime (520432447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260216213 + 260216214.

It is an arithmetic number, because the mean of its divisors is an integer number (260216214).

Almost surely, 2^520432427 is an apocalyptic number.

520432427 is a deficient number, since it is larger than the sum of its proper divisors (1).

520432427 is an equidigital number, since it uses as much as digits as its factorization.

520432427 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 29.

The square root of 520432427 is about 22812.9881208052. The cubic root of 520432427 is about 804.3679964161.

The spelling of 520432427 in words is "five hundred twenty million, four hundred thirty-two thousand, four hundred twenty-seven".