520253 has 4 divisors (see below), whose sum is σ = 525408. Its totient is φ = 515100.

The previous prime is 520241. The next prime is 520279. The reversal of 520253 is 352025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520253 - 2⁸ = 519997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2423 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (131352).

2⁵²⁰²⁵³ is an apocalyptic number.

It is an amenable number.

520253 is a deficient number, since it is larger than the sum of its proper divisors (5155).

520253 is a wasteful number, since it uses less digits than its factorization.

520253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 520253 is about 721.2856576974. The cubic root of 520253 is about 80.4275546421.

Adding to 520253 its reverse (352025), we get a palindrome (872278).

The spelling of 520253 in words is "five hundred twenty thousand, two hundred fifty-three".