520427 has 2 divisors, whose sum is σ = 520428. Its totient is φ = 520426.

The previous prime is 520423. The next prime is 520433. The reversal of 520427 is 724025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520427 - 2² = 520423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520399 and 520408.

It is not a weakly prime, because it can be changed into another prime (520423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260213 + 260214.

It is an arithmetic number, because the mean of its divisors is an integer number (260214).

2⁵²⁰⁴²⁷ is an apocalyptic number.

520427 is a deficient number, since it is larger than the sum of its proper divisors (1).

520427 is an equidigital number, since it uses as much as digits as its factorization.

520427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 520427 is about 721.4062655675. The cubic root of 520427 is about 80.4365200459.

The spelling of 520427 in words is "five hundred twenty thousand, four hundred twenty-seven".