520132401 has 8 divisors (see below), whose sum is σ = 770566560. Its totient is φ = 346754916.

The previous prime is 520132397. The next prime is 520132411. The reversal of 520132401 is 104231025.

It is not a de Polignac number, because 520132401 - 2² = 520132397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520132411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9632055 + ... + 9632108.

It is an arithmetic number, because the mean of its divisors is an integer number (96320820).

Almost surely, 2^520132401 is an apocalyptic number.

It is an amenable number.

520132401 is a deficient number, since it is larger than the sum of its proper divisors (250434159).

520132401 is a wasteful number, since it uses less digits than its factorization.

520132401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19264172 (or 19264166 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 520132401 is about 22806.4114011828. The cubic root of 520132401 is about 804.2133956839.

Adding to 520132401 its reverse (104231025), we get a palindrome (624363426).

The spelling of 520132401 in words is "five hundred twenty million, one hundred thirty-two thousand, four hundred one".