520644201 has 16 divisors (see below), whose sum is σ = 865486848. Its totient is φ = 270464400.

The previous prime is 520644197. The next prime is 520644253. The reversal of 520644201 is 102446025.

It is not a de Polignac number, because 520644201 - 2² = 520644197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520644001) 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, 1126705 + ... + 1127166.

It is an arithmetic number, because the mean of its divisors is an integer number (54092928).

Almost surely, 2^520644201 is an apocalyptic number.

It is an amenable number.

520644201 is a deficient number, since it is larger than the sum of its proper divisors (344842647).

520644201 is a wasteful number, since it uses less digits than its factorization.

520644201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253892.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 520644201 is about 22817.6291713228. The cubic root of 520644201 is about 804.4770859084.

It can be divided in two parts, 52064 and 4201, that added together give a palindrome (56265).

The spelling of 520644201 in words is "five hundred twenty million, six hundred forty-four thousand, two hundred one".