520125 has 32 divisors (see below), whose sum is σ = 923520. Its totient is φ = 259200.

The previous prime is 520123. The next prime is 520129. The reversal of 520125 is 521025.

520125 = T₈₁ + T₈₂ + ... + T₁₅₃.

520125 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 520125 - 2¹ = 520123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7089 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (28860).

2⁵²⁰¹²⁵ is an apocalyptic number.

It is an amenable number.

520125 is a deficient number, since it is larger than the sum of its proper divisors (403395).

520125 is a wasteful number, since it uses less digits than its factorization.

520125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 520125 is about 721.1969217904. The cubic root of 520125 is about 80.4209581263.

Subtracting from 520125 its product of nonzero digits (100), we obtain a palindrome (520025).

Subtracting 520125 from its reverse (521025), we obtain a square (900 = 30²).

The spelling of 520125 in words is "five hundred twenty thousand, one hundred twenty-five".