520727441 has 4 divisors (see below), whose sum is σ = 560783412. Its totient is φ = 480671472.

The previous prime is 520727423. The next prime is 520727453. The reversal of 520727441 is 144727025.

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 245831041 + 274896400 = 15679^2 + 16580^2 .

It is a cyclic number.

It is not a de Polignac number, because 520727441 - 2¹⁴ = 520711057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520727398 and 520727407.

It is not an unprimeable number, because it can be changed into a prime (520727411) 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, 20027966 + ... + 20027991.

It is an arithmetic number, because the mean of its divisors is an integer number (140195853).

Almost surely, 2^520727441 is an apocalyptic number.

It is an amenable number.

520727441 is a deficient number, since it is larger than the sum of its proper divisors (40055971).

520727441 is a wasteful number, since it uses less digits than its factorization.

520727441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40055970.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 520727441 is about 22819.4531266637. The cubic root of 520727441 is about 804.5199565829.

The spelling of 520727441 in words is "five hundred twenty million, seven hundred twenty-seven thousand, four hundred forty-one".