520322441 has 4 divisors (see below), whose sum is σ = 520756884. Its totient is φ = 519888000.

The previous prime is 520322419. The next prime is 520322443. The reversal of 520322441 is 144223025.

It is a happy number.

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 103958416 + 416364025 = 10196^2 + 20405^2 .

It is a cyclic number.

It is not a de Polignac number, because 520322441 - 2¹⁸ = 520060297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520322443) 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, 215420 + ... + 217821.

It is an arithmetic number, because the mean of its divisors is an integer number (130189221).

Almost surely, 2^520322441 is an apocalyptic number.

It is an amenable number.

520322441 is a deficient number, since it is larger than the sum of its proper divisors (434443).

520322441 is a wasteful number, since it uses less digits than its factorization.

520322441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434442.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 520322441 is about 22810.5773929552. The cubic root of 520322441 is about 804.3113285076.

Adding to 520322441 its reverse (144223025), we get a palindrome (664545466).

The spelling of 520322441 in words is "five hundred twenty million, three hundred twenty-two thousand, four hundred forty-one".