520547 has 2 divisors, whose sum is σ = 520548. Its totient is φ = 520546.

The previous prime is 520529. The next prime is 520549. The reversal of 520547 is 745025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520547 - 2⁸ = 520291 is a prime.

Together with 520549, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 520547.

It is not a weakly prime, because it can be changed into another prime (520549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260273 + 260274.

It is an arithmetic number, because the mean of its divisors is an integer number (260274).

2⁵²⁰⁵⁴⁷ is an apocalyptic number.

520547 is a deficient number, since it is larger than the sum of its proper divisors (1).

520547 is an equidigital number, since it uses as much as digits as its factorization.

520547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520547 is about 721.4894316620. The cubic root of 520547 is about 80.4427019187.

The spelling of 520547 in words is "five hundred twenty thousand, five hundred forty-seven".