520565001 has 16 divisors (see below), whose sum is σ = 758557440. Its totient is φ = 314922320.

The previous prime is 520564991. The next prime is 520565029. The reversal of 520565001 is 100565025.

It is a cyclic number.

It is not a de Polignac number, because 520565001 - 2⁵ = 520564969 is a prime.

It is a super-2 number, since 2×520565001² = 541975840532260002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520565081) 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 15 ways as a sum of consecutive naturals, for example, 4570 + ... + 32588.

It is an arithmetic number, because the mean of its divisors is an integer number (47409840).

Almost surely, 2^520565001 is an apocalyptic number.

It is an amenable number.

520565001 is a deficient number, since it is larger than the sum of its proper divisors (237992439).

520565001 is a wasteful number, since it uses less digits than its factorization.

520565001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28596.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 520565001 is about 22815.8936051166. The cubic root of 520565001 is about 804.4362916923.

Adding to 520565001 its sum of digits (24), we get a palindrome (520565025).

The spelling of 520565001 in words is "five hundred twenty million, five hundred sixty-five thousand, one".