520553 has 8 divisors (see below), whose sum is σ = 583680. Its totient is φ = 460080.

The previous prime is 520549. The next prime is 520567. The reversal of 520553 is 355025.

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

It is a cyclic number.

It is not a de Polignac number, because 520553 - 2² = 520549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (72960).

2⁵²⁰⁵⁵³ is an apocalyptic number.

It is an amenable number.

520553 is a deficient number, since it is larger than the sum of its proper divisors (63127).

520553 is a wasteful number, since it uses less digits than its factorization.

520553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 520553 is about 721.4935897151. The cubic root of 520553 is about 80.4430109874.

Adding to 520553 its reverse (355025), we get a palindrome (875578).

The spelling of 520553 in words is "five hundred twenty thousand, five hundred fifty-three".