520260269 has 8 divisors (see below), whose sum is σ = 533319480. Its totient is φ = 507361536.

The previous prime is 520260187. The next prime is 520260271. The reversal of 520260269 is 962062025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29106025 + 491154244 = 5395^2 + 22162^2 .

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 520260269 - 2¹² = 520256173 is a prime.

It is a super-2 number, since 2×520260269² = 541341494999904722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520265269) 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, 33542 + ... + 46535.

It is an arithmetic number, because the mean of its divisors is an integer number (66664935).

Almost surely, 2^520260269 is an apocalyptic number.

It is an amenable number.

520260269 is a deficient number, since it is larger than the sum of its proper divisors (13059211).

520260269 is an equidigital number, since it uses as much as digits as its factorization.

520260269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80239.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 520260269 is about 22809.2145634171. The cubic root of 520260269 is about 804.2792921959.

The spelling of 520260269 in words is "five hundred twenty million, two hundred sixty thousand, two hundred sixty-nine".