520839201 has 4 divisors (see below), whose sum is σ = 694452272. Its totient is φ = 347226132.

The previous prime is 520839131. The next prime is 520839223. The reversal of 520839201 is 102938025.

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 not a de Polignac number, because 520839201 - 2⁷ = 520839073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520832201) 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, 86806531 + ... + 86806536.

It is an arithmetic number, because the mean of its divisors is an integer number (173613068).

Almost surely, 2^520839201 is an apocalyptic number.

It is an amenable number.

520839201 is a deficient number, since it is larger than the sum of its proper divisors (173613071).

520839201 is a wasteful number, since it uses less digits than its factorization.

520839201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173613070.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 520839201 is about 22821.9017831556. The cubic root of 520839201 is about 804.5775085839.

The spelling of 520839201 in words is "five hundred twenty million, eight hundred thirty-nine thousand, two hundred one".