521014804 has 12 divisors (see below), whose sum is σ = 928979604. Its totient is φ = 255592064.

The previous prime is 521014801. The next prime is 521014817. The reversal of 521014804 is 408410125.

It can be written as a sum of positive squares in 2 ways, for example, as 441840400 + 79174404 = 21020^2 + 8898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521014801) 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, 1228597 + ... + 1229020.

It is an arithmetic number, because the mean of its divisors is an integer number (77414967).

Almost surely, 2^521014804 is an apocalyptic number.

It is an amenable number.

521014804 is a deficient number, since it is larger than the sum of its proper divisors (407964800).

521014804 is a wasteful number, since it uses less digits than its factorization.

521014804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457674 (or 2457672 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 521014804 is about 22825.7487062309. The cubic root of 521014804 is about 804.6679205886.

Adding to 521014804 its reverse (408410125), we get a palindrome (929424929).

The spelling of 521014804 in words is "five hundred twenty-one million, fourteen thousand, eight hundred four".