520485577185601 has 4 divisors (see below), whose sum is σ = 534552754947412. Its totient is φ = 506418399423792.

The previous prime is 520485577185559. The next prime is 520485577185659. The reversal of 520485577185601 is 106581775584025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 494054421202225 + 26431155983376 = 22227335^2 + 5141124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520485577185601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520485577185671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7033588880850 + ... + 7033588880923.

It is an arithmetic number, because the mean of its divisors is an integer number (133638188736853).

Almost surely, 2^{520485577185601} is an apocalyptic number.

It is an amenable number.

520485577185601 is a deficient number, since it is larger than the sum of its proper divisors (14067177761811).

520485577185601 is a wasteful number, since it uses less digits than its factorization.

520485577185601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14067177761810.

The product of its (nonzero) digits is 94080000, while the sum is 64.

The spelling of 520485577185601 in words is "five hundred twenty trillion, four hundred eighty-five billion, five hundred seventy-seven million, one hundred eighty-five thousand, six hundred one".