521533214 has 8 divisors (see below), whose sum is σ = 795559320. Its totient is φ = 256346776.

The previous prime is 521533213. The next prime is 521533231. The reversal of 521533214 is 412335125.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521533213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209769 + ... + 2210004.

It is an arithmetic number, because the mean of its divisors is an integer number (99444915).

Almost surely, 2^521533214 is an apocalyptic number.

521533214 is a deficient number, since it is larger than the sum of its proper divisors (274026106).

521533214 is a wasteful number, since it uses less digits than its factorization.

521533214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419834.

The product of its digits is 3600, while the sum is 26.

The square root of 521533214 is about 22837.1016987708. The cubic root of 521533214 is about 804.9347137877.

Adding to 521533214 its reverse (412335125), we get a palindrome (933868339).

The spelling of 521533214 in words is "five hundred twenty-one million, five hundred thirty-three thousand, two hundred fourteen".