520705127 has 8 divisors (see below), whose sum is σ = 549427200. Its totient is φ = 492114744.

The previous prime is 520705117. The next prime is 520705147. The reversal of 520705127 is 721507025.

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

It is not a de Polignac number, because 520705127 - 2⁴ = 520705111 is a prime.

It is a super-2 number, since 2×520705127² = 542267658568172258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520705127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520705117) 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, 24743 + ... + 40664.

It is an arithmetic number, because the mean of its divisors is an integer number (68678400).

Almost surely, 2^520705127 is an apocalyptic number.

520705127 is a deficient number, since it is larger than the sum of its proper divisors (28722073).

520705127 is a wasteful number, since it uses less digits than its factorization.

520705127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65845.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 520705127 is about 22818.9641964748. The cubic root of 520705127 is about 804.5084647651.

The spelling of 520705127 in words is "five hundred twenty million, seven hundred five thousand, one hundred twenty-seven".