520783047 has 16 divisors (see below), whose sum is σ = 784180960. Its totient is φ = 341496000.

The previous prime is 520783031. The next prime is 520783057. The reversal of 520783047 is 740387025.

It is not a de Polignac number, because 520783047 - 2⁴ = 520783031 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 (520783057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156454 + ... + 159747.

It is an arithmetic number, because the mean of its divisors is an integer number (49011310).

Almost surely, 2^520783047 is an apocalyptic number.

520783047 is a deficient number, since it is larger than the sum of its proper divisors (263397913).

520783047 is a wasteful number, since it uses less digits than its factorization.

520783047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316271 (or 316265 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 520783047 is about 22820.6714844239. The cubic root of 520783047 is about 804.5485925134.

The spelling of 520783047 in words is "five hundred twenty million, seven hundred eighty-three thousand, forty-seven".