520754 has 8 divisors (see below), whose sum is σ = 841260. Its totient is φ = 240336.

The previous prime is 520747. The next prime is 520759. The reversal of 520754 is 457025.

520754 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 469225 + 51529 = 685^2 + 227^2 .

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

It is not an unprimeable number, because it can be changed into a prime (520759) by changing a digit.

520754 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9989 + ... + 10040.

2⁵²⁰⁷⁵⁴ is an apocalyptic number.

520754 is a deficient number, since it is larger than the sum of its proper divisors (320506).

520754 is a wasteful number, since it uses less digits than its factorization.

520754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520754 is about 721.6328706482. The cubic root of 520754 is about 80.4533634168.

Adding to 520754 its reverse (457025), we get a palindrome (977779).

The spelling of 520754 in words is "five hundred twenty thousand, seven hundred fifty-four".