520415 has 8 divisors (see below), whose sum is σ = 713760. Its totient is φ = 356832.

The previous prime is 520411. The next prime is 520423. The reversal of 520415 is 514025.

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

It is not a de Polignac number, because 520415 - 2² = 520411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520393 and 520402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520411) 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, 7400 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (89220).

2⁵²⁰⁴¹⁵ is an apocalyptic number.

520415 is a deficient number, since it is larger than the sum of its proper divisors (193345).

520415 is a wasteful number, since it uses less digits than its factorization.

520415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14881.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 520415 is about 721.3979484307. The cubic root of 520415 is about 80.4359018063.

The spelling of 520415 in words is "five hundred twenty thousand, four hundred fifteen".