520975 has 24 divisors (see below), whose sum is σ = 798560. Its totient is φ = 328320.

The previous prime is 520969. The next prime is 520981. The reversal of 520975 is 579025.

It is an interprime number because it is at equal distance from previous prime (520969) and next prime (520981).

It is not a de Polignac number, because 520975 - 2³ = 520967 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2161 + ... + 2389.

2⁵²⁰⁹⁷⁵ is an apocalyptic number.

520975 is a deficient number, since it is larger than the sum of its proper divisors (277585).

520975 is a wasteful number, since it uses less digits than its factorization.

520975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 520975 is about 721.7859793595. The cubic root of 520975 is about 80.4647428645.

The spelling of 520975 in words is "five hundred twenty thousand, nine hundred seventy-five".