520522427 has 2 divisors, whose sum is σ = 520522428. Its totient is φ = 520522426.

The previous prime is 520522393. The next prime is 520522447. The reversal of 520522427 is 724225025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520522427 - 2¹⁶ = 520456891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520522427.

It is not a weakly prime, because it can be changed into another prime (520522447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260261213 + 260261214.

It is an arithmetic number, because the mean of its divisors is an integer number (260261214).

Almost surely, 2^520522427 is an apocalyptic number.

520522427 is a deficient number, since it is larger than the sum of its proper divisors (1).

520522427 is an equidigital number, since it uses as much as digits as its factorization.

520522427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 520522427 is about 22814.9605960650. The cubic root of 520522427 is about 804.4143610309.

The spelling of 520522427 in words is "five hundred twenty million, five hundred twenty-two thousand, four hundred twenty-seven".