520761 has 8 divisors (see below), whose sum is σ = 735264. Its totient is φ = 326720.

The previous prime is 520759. The next prime is 520763. The reversal of 520761 is 167025.

It is an interprime number because it is at equal distance from previous prime (520759) and next prime (520763).

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 520761 - 2¹ = 520759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520763) 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, 5055 + ... + 5156.

It is an arithmetic number, because the mean of its divisors is an integer number (91908).

2⁵²⁰⁷⁶¹ is an apocalyptic number.

520761 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

520761 is a deficient number, since it is larger than the sum of its proper divisors (214503).

520761 is a wasteful number, since it uses less digits than its factorization.

520761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10231.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 520761 is about 721.6377207436. The cubic root of 520761 is about 80.4537239012.

Adding to 520761 its reverse (167025), we get a palindrome (687786).

The spelling of 520761 in words is "five hundred twenty thousand, seven hundred sixty-one".