505480 has 16 divisors (see below), whose sum is σ = 1137420. Its totient is φ = 202176.

The previous prime is 505469. The next prime is 505481. The reversal of 505480 is 84505.

505480 = T₂₅ + T₂₆ + ... + T₁₄₄.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 459684 + 45796 = 678^2 + 214^2 .

It is not an unprimeable number, because it can be changed into a prime (505481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6279 + ... + 6358.

2⁵⁰⁵⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

505480 is an abundant number, since it is smaller than the sum of its proper divisors (631940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505480 is a wasteful number, since it uses less digits than its factorization.

505480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12648 (or 12644 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 505480 is about 710.9711667853. The cubic root of 505480 is about 79.6589649209.

Adding to 505480 its reverse (84505), we get a palindrome (589985).

The spelling of 505480 in words is "five hundred five thousand, four hundred eighty".