521314616 has 16 divisors (see below), whose sum is σ = 982532400. Its totient is φ = 259305984.

The previous prime is 521314613. The next prime is 521314637. The reversal of 521314616 is 616413125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521314613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167276 + ... + 170363.

It is an arithmetic number, because the mean of its divisors is an integer number (61408275).

Almost surely, 2^521314616 is an apocalyptic number.

It is an amenable number.

521314616 is a deficient number, since it is larger than the sum of its proper divisors (461217784).

521314616 is a wasteful number, since it uses less digits than its factorization.

521314616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337838 (or 337834 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 521314616 is about 22832.3151695136. The cubic root of 521314616 is about 804.8222366380.

The spelling of 521314616 in words is "five hundred twenty-one million, three hundred fourteen thousand, six hundred sixteen".