520102001 has 8 divisors (see below), whose sum is σ = 523272960. Its totient is φ = 516939808.

The previous prime is 520101983. The next prime is 520102019. The reversal of 520102001 is 100201025.

It is an interprime number because it is at equal distance from previous prime (520101983) and next prime (520102019).

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

It is a cyclic number.

It is not a de Polignac number, because 520102001 - 2⁶ = 520101937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520102021) 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, 145700 + ... + 149226.

It is an arithmetic number, because the mean of its divisors is an integer number (65409120).

Almost surely, 2^520102001 is an apocalyptic number.

It is an amenable number.

520102001 is a deficient number, since it is larger than the sum of its proper divisors (3170959).

520102001 is a wasteful number, since it uses less digits than its factorization.

520102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 520102001 is about 22805.7449121926. The cubic root of 520102001 is about 804.1977275172.

Adding to 520102001 its reverse (100201025), we get a palindrome (620303026).

The spelling of 520102001 in words is "five hundred twenty million, one hundred two thousand, one".