521062216 has 16 divisors (see below), whose sum is σ = 991574640. Its totient is φ = 256642320.

The previous prime is 521062187. The next prime is 521062219. The reversal of 521062216 is 612260125.

It is not an unprimeable number, because it can be changed into a prime (521062219) 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, 485530 + ... + 486601.

It is an arithmetic number, because the mean of its divisors is an integer number (61973415).

Almost surely, 2^521062216 is an apocalyptic number.

It is an amenable number.

521062216 is a deficient number, since it is larger than the sum of its proper divisors (470512424).

521062216 is a wasteful number, since it uses less digits than its factorization.

521062216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972204 (or 972200 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 521062216 is about 22826.7872465663. The cubic root of 521062216 is about 804.6923279298.

The spelling of 521062216 in words is "five hundred twenty-one million, sixty-two thousand, two hundred sixteen".