521484413 has 6 divisors (see below), whose sum is σ = 524453886. Its totient is φ = 518518392.

The previous prime is 521484391. The next prime is 521484443. The reversal of 521484413 is 314484125.

It can be written as a sum of positive squares in only one way, i.e., 518837284 + 2647129 = 22778^2 + 1627^2 .

It is not a de Polignac number, because 521484413 - 2⁸ = 521484157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 521484413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521484443) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 319706 + ... + 321332.

It is an arithmetic number, because the mean of its divisors is an integer number (87408981).

Almost surely, 2^521484413 is an apocalyptic number.

It is an amenable number.

521484413 is a deficient number, since it is larger than the sum of its proper divisors (2969473).

521484413 is an frugal number, since it uses more digits than its factorization.

521484413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451 (or 1824 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 521484413 is about 22836.0332150748. The cubic root of 521484413 is about 804.9096065058.

The spelling of 521484413 in words is "five hundred twenty-one million, four hundred eighty-four thousand, four hundred thirteen".