520575517207 has 4 divisors (see below), whose sum is σ = 520681094136. Its totient is φ = 520469940280.

The previous prime is 520575517193. The next prime is 520575517249. The reversal of 520575517207 is 702715575025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520575517207 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 (520575517307) 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 3 ways as a sum of consecutive naturals, for example, 52781068 + ... + 52790929.

It is an arithmetic number, because the mean of its divisors is an integer number (130170273534).

Almost surely, 2^520575517207 is an apocalyptic number.

520575517207 is a deficient number, since it is larger than the sum of its proper divisors (105576929).

520575517207 is a wasteful number, since it uses less digits than its factorization.

520575517207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105576928.

The product of its (nonzero) digits is 857500, while the sum is 46.

The spelling of 520575517207 in words is "five hundred twenty billion, five hundred seventy-five million, five hundred seventeen thousand, two hundred seven".