520269 has 8 divisors (see below), whose sum is σ = 705312. Its totient is φ = 341040.

The previous prime is 520241. The next prime is 520279. The reversal of 520269 is 962025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-520269 is a prime.

It is a super-2 number, since 2×520269² = 541359664722, which contains 22 as substring.

520269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239 + ... + 1604.

It is an arithmetic number, because the mean of its divisors is an integer number (88164).

2⁵²⁰²⁶⁹ is an apocalyptic number.

It is an amenable number.

520269 is a deficient number, since it is larger than the sum of its proper divisors (185043).

520269 is a wasteful number, since it uses less digits than its factorization.

520269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 520269 is about 721.2967489182. The cubic root of 520269 is about 80.4283791305.

The spelling of 520269 in words is "five hundred twenty thousand, two hundred sixty-nine".