521116214 has 16 divisors (see below), whose sum is σ = 803407248. Its totient is φ = 253324512.

The previous prime is 521116163. The next prime is 521116237. The reversal of 521116214 is 412611125.

It is a self number, because there is not a number n which added to its sum of digits gives 521116214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181877 + ... + 184719.

It is an arithmetic number, because the mean of its divisors is an integer number (50212953).

Almost surely, 2^521116214 is an apocalyptic number.

521116214 is a deficient number, since it is larger than the sum of its proper divisors (282291034).

521116214 is a wasteful number, since it uses less digits than its factorization.

521116214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359.

The product of its digits is 480, while the sum is 23.

The square root of 521116214 is about 22827.9699929713. The cubic root of 521116214 is about 804.7201238910.

Adding to 521116214 its reverse (412611125), we get a palindrome (933727339).

The spelling of 521116214 in words is "five hundred twenty-one million, one hundred sixteen thousand, two hundred fourteen".