576505 has 4 divisors (see below), whose sum is σ = 691812. Its totient is φ = 461200.

The previous prime is 576493. The next prime is 576509. The reversal of 576505 is 505675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 310249 + 266256 = 557^2 + 516^2 .

It is not a de Polignac number, because 576505 - 2⁵ = 576473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (576509) 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, 57646 + ... + 57655.

It is an arithmetic number, because the mean of its divisors is an integer number (172953).

2⁵⁷⁶⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

576505 is a deficient number, since it is larger than the sum of its proper divisors (115307).

576505 is a wasteful number, since it uses less digits than its factorization.

576505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115306.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 576505 is about 759.2792635124. The cubic root of 576505 is about 83.2276616140.

It can be divided in two parts, 576 and 505, that added together give a triangular number (1081 = T₄₆).

The spelling of 576505 in words is "five hundred seventy-six thousand, five hundred five".