521300224 has 27 divisors (see below), whose sum is σ = 1041293827. Its totient is φ = 260467456.

The previous prime is 521300203. The next prime is 521300233. The reversal of 521300224 is 422003125.

The square root of 521300224 is 22832.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 in 2 ways as a sum of consecutive naturals, for example, 364599 + ... + 366025.

Almost surely, 2^521300224 is an apocalyptic number.

521300224 is the 22832-nd square number.

It is an amenable number.

521300224 is a deficient number, since it is larger than the sum of its proper divisors (519993603).

521300224 is an frugal number, since it uses more digits than its factorization.

521300224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The cubic root of 521300224 is about 804.8148302927.

Adding to 521300224 its reverse (422003125), we get a palindrome (943303349).

The spelling of 521300224 in words is "five hundred twenty-one million, three hundred thousand, two hundred twenty-four".