504506 has 4 divisors (see below), whose sum is σ = 756762. Its totient is φ = 252252.

The previous prime is 504479. The next prime is 504521. The reversal of 504506 is 605405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605405 = 5 ⋅121081.

It can be written as a sum of positive squares in only one way, i.e., 434281 + 70225 = 659^2 + 265^2 .

It is an unprimeable number.

504506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126125 + ... + 126128.

2⁵⁰⁴⁵⁰⁶ is an apocalyptic number.

504506 is a deficient number, since it is larger than the sum of its proper divisors (252256).

504506 is a wasteful number, since it uses less digits than its factorization.

504506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252255.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 504506 is about 710.2858579473. The cubic root of 504506 is about 79.6077675643.

The spelling of 504506 in words is "five hundred four thousand, five hundred six".