520403241 has 8 divisors (see below), whose sum is σ = 694615264. Its totient is φ = 346563360.

The previous prime is 520403239. The next prime is 520403249. The reversal of 520403241 is 142304025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520403241 - 2¹ = 520403239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520403249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89755 + ... + 95376.

It is an arithmetic number, because the mean of its divisors is an integer number (86826908).

Almost surely, 2^520403241 is an apocalyptic number.

It is an amenable number.

520403241 is a deficient number, since it is larger than the sum of its proper divisors (174212023).

520403241 is a wasteful number, since it uses less digits than its factorization.

520403241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186071.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 520403241 is about 22812.3484323732. The cubic root of 520403241 is about 804.3529597389.

Adding to 520403241 its reverse (142304025), we get a palindrome (662707266).

The spelling of 520403241 in words is "five hundred twenty million, four hundred three thousand, two hundred forty-one".