520040001 has 16 divisors (see below), whose sum is σ = 752431680. Its totient is φ = 317578560.

The previous prime is 520039987. The next prime is 520040039. The reversal of 520040001 is 100040025.

It is not a de Polignac number, because 520040001 - 2⁷ = 520039873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520040071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45786 + ... + 56003.

It is an arithmetic number, because the mean of its divisors is an integer number (47026980).

Almost surely, 2^520040001 is an apocalyptic number.

It is an amenable number.

520040001 is a deficient number, since it is larger than the sum of its proper divisors (232391679).

520040001 is a wasteful number, since it uses less digits than its factorization.

520040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101936.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 520040001 is about 22804.3855650618. The cubic root of 520040001 is about 804.1657708110.

Adding to 520040001 its reverse (100040025), we get a palindrome (620080026).

The spelling of 520040001 in words is "five hundred twenty million, forty thousand, one".