520444441 has 4 divisors (see below), whose sum is σ = 567757584. Its totient is φ = 473131300.

The previous prime is 520444433. The next prime is 520444453. The reversal of 520444441 is 144444025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520444441 - 2³ = 520444433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520444241) 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, 23656555 + ... + 23656576.

It is an arithmetic number, because the mean of its divisors is an integer number (141939396).

Almost surely, 2^520444441 is an apocalyptic number.

It is an amenable number.

520444441 is a deficient number, since it is larger than the sum of its proper divisors (47313143).

520444441 is a wasteful number, since it uses less digits than its factorization.

520444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47313142.

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 520444441 is about 22813.2514341994. The cubic root of 520444441 is about 804.3741858861.

Adding to 520444441 its reverse (144444025), we get a palindrome (664888466).

The spelling of 520444441 in words is "five hundred twenty million, four hundred forty-four thousand, four hundred forty-one".