520002111 has 8 divisors (see below), whose sum is σ = 697590400. Its totient is φ = 344540952.

The previous prime is 520002097. The next prime is 520002149. The reversal of 520002111 is 111200025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520002111 - 2⁷ = 520001983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520002911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531211 + ... + 532188.

It is an arithmetic number, because the mean of its divisors is an integer number (87198800).

Almost surely, 2^520002111 is an apocalyptic number.

520002111 is a deficient number, since it is larger than the sum of its proper divisors (177588289).

520002111 is a wasteful number, since it uses less digits than its factorization.

520002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063565.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 520002111 is about 22803.5547886728. The cubic root of 520002111 is about 804.1462398897.

Adding to 520002111 its reverse (111200025), we get a palindrome (631202136).

The spelling of 520002111 in words is "five hundred twenty million, two thousand, one hundred eleven".