520675505 has 16 divisors (see below), whose sum is σ = 718205184. Its totient is φ = 354966720.

The previous prime is 520675501. The next prime is 520675537. The reversal of 520675505 is 505576025.

It is not a de Polignac number, because 520675505 - 2² = 520675501 is a prime.

It is a super-2 number, since 2×520675505² = 542205963014010050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520675501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36941 + ... + 49050.

It is an arithmetic number, because the mean of its divisors is an integer number (44887824).

Almost surely, 2^520675505 is an apocalyptic number.

It is an amenable number.

520675505 is a deficient number, since it is larger than the sum of its proper divisors (197529679).

520675505 is a wasteful number, since it uses less digits than its factorization.

520675505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86176.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 520675505 is about 22818.3151218489. The cubic root of 520675505 is about 804.4932087846.

The spelling of 520675505 in words is "five hundred twenty million, six hundred seventy-five thousand, five hundred five".