521063245 has 8 divisors (see below), whose sum is σ = 626690016. Its totient is φ = 415907856.

The previous prime is 521063237. The next prime is 521063261. The reversal of 521063245 is 542360125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 521063245 - 2³ = 521063237 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 115407 + ... + 119836.

It is an arithmetic number, because the mean of its divisors is an integer number (78336252).

Almost surely, 2^521063245 is an apocalyptic number.

It is an amenable number.

521063245 is a deficient number, since it is larger than the sum of its proper divisors (105626771).

521063245 is a wasteful number, since it uses less digits than its factorization.

521063245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235691.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 521063245 is about 22826.8097858636. The cubic root of 521063245 is about 804.6928576349.

The spelling of 521063245 in words is "five hundred twenty-one million, sixty-three thousand, two hundred forty-five".