521108116 has 12 divisors (see below), whose sum is σ = 926889460. Its totient is φ = 256282560.

The previous prime is 521108101. The next prime is 521108141. The reversal of 521108116 is 611801125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150160516 + 370947600 = 12254^2 + 19260^2 .

It is a super-2 number, since 2×521108116² = 543107337122138912, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1067601 + ... + 1068088.

Almost surely, 2^521108116 is an apocalyptic number.

It is an amenable number.

521108116 is a deficient number, since it is larger than the sum of its proper divisors (405781344).

521108116 is a wasteful number, since it uses less digits than its factorization.

521108116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135754 (or 2135752 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 25.

The square root of 521108116 is about 22827.7926221525. The cubic root of 521108116 is about 804.7159554943.

The spelling of 521108116 in words is "five hundred twenty-one million, one hundred eight thousand, one hundred sixteen".