520010051507609 has 8 divisors (see below), whose sum is σ = 565148538690120. Its totient is φ = 475605523466496.

The previous prime is 520010051507603. The next prime is 520010051507803. The reversal of 520010051507609 is 906705150010025.

It can be written as a sum of positive squares in 4 ways, for example, as 1599630505225 + 518410421002384 = 1264765^2 + 22768628^2 .

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 520010051507609 - 2¹⁶ = 520010051442073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520010051507603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183489783872 + ... + 183489786705.

It is an arithmetic number, because the mean of its divisors is an integer number (70643567336265).

Almost surely, 2^{520010051507609} is an apocalyptic number.

It is an amenable number.

520010051507609 is a deficient number, since it is larger than the sum of its proper divisors (45138487182511).

520010051507609 is a wasteful number, since it uses less digits than its factorization.

520010051507609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366979570699.

The product of its (nonzero) digits is 94500, while the sum is 41.

The spelling of 520010051507609 in words is "five hundred twenty trillion, ten billion, fifty-one million, five hundred seven thousand, six hundred nine".