520475685 has 16 divisors (see below), whose sum is σ = 835933824. Its totient is φ = 276529472.

The previous prime is 520475677. The next prime is 520475693. The reversal of 520475685 is 586574025.

It is an interprime number because it is at equal distance from previous prime (520475677) and next prime (520475693).

It is a cyclic number.

It is not a de Polignac number, because 520475685 - 2³ = 520475677 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62022 + ... + 69911.

It is an arithmetic number, because the mean of its divisors is an integer number (52245864).

Almost surely, 2^520475685 is an apocalyptic number.

It is an amenable number.

520475685 is a deficient number, since it is larger than the sum of its proper divisors (315458139).

520475685 is a wasteful number, since it uses less digits than its factorization.

520475685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132204.

The product of its (nonzero) digits is 336000, while the sum is 42.

The square root of 520475685 is about 22813.9362013660. The cubic root of 520475685 is about 804.3902819777.

The spelling of 520475685 in words is "five hundred twenty million, four hundred seventy-five thousand, six hundred eighty-five".