520311047 has 8 divisors (see below), whose sum is σ = 524520480. Its totient is φ = 516119040.

The previous prime is 520311041. The next prime is 520311059. The reversal of 520311047 is 740113025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520311047 - 2¹⁰ = 520310023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520311041) 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 in 7 ways as a sum of consecutive naturals, for example, 59279 + ... + 67487.

It is an arithmetic number, because the mean of its divisors is an integer number (65565060).

Almost surely, 2^520311047 is an apocalyptic number.

520311047 is a deficient number, since it is larger than the sum of its proper divisors (4209433).

520311047 is a wasteful number, since it uses less digits than its factorization.

520311047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 520311047 is about 22810.3276390323. The cubic root of 520311047 is about 804.3054575390.

The spelling of 520311047 in words is "five hundred twenty million, three hundred eleven thousand, forty-seven".