521284112 has 10 divisors (see below), whose sum is σ = 1009987998. Its totient is φ = 260642048.

The previous prime is 521284109. The next prime is 521284123. The reversal of 521284112 is 211482125.

It can be written as a sum of positive squares in only one way, i.e., 448761856 + 72522256 = 21184^2 + 8516^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16290113 + ... + 16290144.

Almost surely, 2^521284112 is an apocalyptic number.

It is an amenable number.

521284112 is a deficient number, since it is larger than the sum of its proper divisors (488703886).

521284112 is a wasteful number, since it uses less digits than its factorization.

521284112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32580265 (or 32580259 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 521284112 is about 22831.6471591517. The cubic root of 521284112 is about 804.8065386471.

The spelling of 521284112 in words is "five hundred twenty-one million, two hundred eighty-four thousand, one hundred twelve".