520486253 has 4 divisors (see below), whose sum is σ = 594841440. Its totient is φ = 446131068.

The previous prime is 520486223. The next prime is 520486271. The reversal of 520486253 is 352684025.

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 520486253 - 2¹⁶ = 520420717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520486223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37177583 + ... + 37177596.

It is an arithmetic number, because the mean of its divisors is an integer number (148710360).

Almost surely, 2^520486253 is an apocalyptic number.

It is an amenable number.

520486253 is a deficient number, since it is larger than the sum of its proper divisors (74355187).

520486253 is an equidigital number, since it uses as much as digits as its factorization.

520486253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74355186.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 520486253 is about 22814.1678130060. The cubic root of 520486253 is about 804.3957261891.

The spelling of 520486253 in words is "five hundred twenty million, four hundred eighty-six thousand, two hundred fifty-three".