520143263 has 8 divisors (see below), whose sum is σ = 523479936. Its totient is φ = 516816000.

The previous prime is 520143257. The next prime is 520143287. The reversal of 520143263 is 362341025.

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 520143263 - 2¹⁴ = 520126879 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520143223) 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, 132083 + ... + 135963.

It is an arithmetic number, because the mean of its divisors is an integer number (65434992).

Almost surely, 2^520143263 is an apocalyptic number.

520143263 is a deficient number, since it is larger than the sum of its proper divisors (3336673).

520143263 is a wasteful number, since it uses less digits than its factorization.

520143263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 520143263 is about 22806.6495347300. The cubic root of 520143263 is about 804.2189938131.

Adding to 520143263 its reverse (362341025), we get a palindrome (882484288).

The spelling of 520143263 in words is "five hundred twenty million, one hundred forty-three thousand, two hundred sixty-three".