520853 has 2 divisors, whose sum is σ = 520854. Its totient is φ = 520852.

The previous prime is 520841. The next prime is 520867. The reversal of 520853 is 358025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515524 + 5329 = 718^2 + 73^2 .

It is a cyclic number.

It is not a de Polignac number, because 520853 - 2⁴ = 520837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260426 + 260427.

It is an arithmetic number, because the mean of its divisors is an integer number (260427).

2⁵²⁰⁸⁵³ is an apocalyptic number.

It is an amenable number.

520853 is a deficient number, since it is larger than the sum of its proper divisors (1).

520853 is an equidigital number, since it uses as much as digits as its factorization.

520853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 520853 is about 721.7014618248. The cubic root of 520853 is about 80.4584613955.

Adding to 520853 its reverse (358025), we get a palindrome (878878).

The spelling of 520853 in words is "five hundred twenty thousand, eight hundred fifty-three".