520522441 has 4 divisors (see below), whose sum is σ = 522989584. Its totient is φ = 518055300.

The previous prime is 520522427. The next prime is 520522447. The reversal of 520522441 is 144225025.

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 520522441 - 2¹³ = 520514249 is a prime.

It is a super-2 number, since 2×520522441² = 541887223169196962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520522447) 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, 1233255 + ... + 1233676.

It is an arithmetic number, because the mean of its divisors is an integer number (130747396).

Almost surely, 2^520522441 is an apocalyptic number.

It is an amenable number.

520522441 is a deficient number, since it is larger than the sum of its proper divisors (2467143).

520522441 is a wasteful number, since it uses less digits than its factorization.

520522441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467142.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 520522441 is about 22814.9609028812. The cubic root of 520522441 is about 804.4143682427.

Adding to 520522441 its reverse (144225025), we get a palindrome (664747466).

The spelling of 520522441 in words is "five hundred twenty million, five hundred twenty-two thousand, four hundred forty-one".