520342001 has 8 divisors (see below), whose sum is σ = 556407144. Its totient is φ = 484883200.

The previous prime is 520341959. The next prime is 520342013. The reversal of 520342001 is 100243025.

It can be written as a sum of positive squares in 4 ways, for example, as 418816225 + 101525776 = 20465^2 + 10076^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520342001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520342091) 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, 149810 + ... + 153243.

It is an arithmetic number, because the mean of its divisors is an integer number (69550893).

Almost surely, 2^520342001 is an apocalyptic number.

It is an amenable number.

520342001 is a deficient number, since it is larger than the sum of its proper divisors (36065143).

520342001 is a wasteful number, since it uses less digits than its factorization.

520342001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303171.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 520342001 is about 22811.0061373890. The cubic root of 520342001 is about 804.3214069584.

Adding to 520342001 its reverse (100243025), we get a palindrome (620585026).

The spelling of 520342001 in words is "five hundred twenty million, three hundred forty-two thousand, one".