520267001 has 4 divisors (see below), whose sum is σ = 522991104. Its totient is φ = 517542900.

The previous prime is 520266961. The next prime is 520267039. The reversal of 520267001 is 100762025.

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 a de Polignac number, because none of the positive numbers 2^k-520267001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520267051) 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, 1361765 + ... + 1362146.

It is an arithmetic number, because the mean of its divisors is an integer number (130747776).

Almost surely, 2^520267001 is an apocalyptic number.

It is an amenable number.

520267001 is a deficient number, since it is larger than the sum of its proper divisors (2724103).

520267001 is a wasteful number, since it uses less digits than its factorization.

520267001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724102.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 520267001 is about 22809.3621348779. The cubic root of 520267001 is about 804.2827612191.

The spelling of 520267001 in words is "five hundred twenty million, two hundred sixty-seven thousand, one".