520065001 has 4 divisors (see below), whose sum is σ = 520379392. Its totient is φ = 519750612.

The previous prime is 520064911. The next prime is 520065023. The reversal of 520065001 is 100560025.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520065001 - 2²⁵ = 486510569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520065001.

It is not an unprimeable number, because it can be changed into a prime (520065041) 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, 154701 + ... + 158026.

It is an arithmetic number, because the mean of its divisors is an integer number (130094848).

Almost surely, 2^520065001 is an apocalyptic number.

It is an amenable number.

520065001 is a deficient number, since it is larger than the sum of its proper divisors (314391).

520065001 is a wasteful number, since it uses less digits than its factorization.

520065001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314390.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 520065001 is about 22804.9336986539. The cubic root of 520065001 is about 804.1786568852.

The spelling of 520065001 in words is "five hundred twenty million, sixty-five thousand, one".