506444605 has 4 divisors (see below), whose sum is σ = 607733532. Its totient is φ = 405155680.

The previous prime is 506444597. The next prime is 506444623.

506444605 is nontrivially palindromic in base 10.

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 125843524 + 380601081 = 11218^2 + 19509^2 .

It is not a de Polignac number, because 506444605 - 2³ = 506444597 is a prime.

It is a super-2 number, since 2×506444605² = 512972275867212050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50644456 + ... + 50644465.

It is an arithmetic number, because the mean of its divisors is an integer number (151933383).

Almost surely, 2^506444605 is an apocalyptic number.

It is an amenable number.

506444605 is a deficient number, since it is larger than the sum of its proper divisors (101288927).

506444605 is a wasteful number, since it uses less digits than its factorization.

506444605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101288926.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 506444605 is about 22504.3241400403. The cubic root of 506444605 is about 797.0960366047.

The spelling of 506444605 in words is "five hundred six million, four hundred forty-four thousand, six hundred five".