520317427 has 12 divisors (see below), whose sum is σ = 610630056. Its totient is φ = 442034880.

The previous prime is 520317341. The next prime is 520317439. The reversal of 520317427 is 724713025.

It is not a de Polignac number, because 520317427 - 2²³ = 511928819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520317467) 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 in 11 ways as a sum of consecutive naturals, for example, 41449 + ... + 52522.

It is an arithmetic number, because the mean of its divisors is an integer number (50885838).

Almost surely, 2^520317427 is an apocalyptic number.

520317427 is a deficient number, since it is larger than the sum of its proper divisors (90312629).

520317427 is a wasteful number, since it uses less digits than its factorization.

520317427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94098 (or 94091 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 520317427 is about 22810.4674875374. The cubic root of 520317427 is about 804.3087449622.

The spelling of 520317427 in words is "five hundred twenty million, three hundred seventeen thousand, four hundred twenty-seven".