506565485 has 4 divisors (see below), whose sum is σ = 607878588. Its totient is φ = 405252384.

The previous prime is 506565463. The next prime is 506565487. The reversal of 506565485 is 584565605.

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 199685161 + 306880324 = 14131^2 + 17518^2 .

It is a cyclic number.

It is not a de Polignac number, because 506565485 - 2⁶ = 506565421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506565487) 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, 50656544 + ... + 50656553.

It is an arithmetic number, because the mean of its divisors is an integer number (151969647).

Almost surely, 2^506565485 is an apocalyptic number.

It is an amenable number.

506565485 is a deficient number, since it is larger than the sum of its proper divisors (101313103).

506565485 is a wasteful number, since it uses less digits than its factorization.

506565485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101313102.

The product of its (nonzero) digits is 720000, while the sum is 44.

The square root of 506565485 is about 22507.0096858734. The cubic root of 506565485 is about 797.1594494656.

The spelling of 506565485 in words is "five hundred six million, five hundred sixty-five thousand, four hundred eighty-five".