573813521 has 6 divisors (see below), whose sum is σ = 576258822. Its totient is φ = 571371360.

The previous prime is 573813497. The next prime is 573813557. The reversal of 573813521 is 125318375.

It can be written as a sum of positive squares in 3 ways, for example, as 929296 + 572884225 = 964^2 + 23935^2 .

It is a de Polignac number, because none of the positive numbers 2^k-573813521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573813221) 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 5 ways as a sum of consecutive naturals, for example, 400835 + ... + 402263.

It is an arithmetic number, because the mean of its divisors is an integer number (96043137).

Almost surely, 2^573813521 is an apocalyptic number.

It is an amenable number.

573813521 is a deficient number, since it is larger than the sum of its proper divisors (2445301).

573813521 is an frugal number, since it uses more digits than its factorization.

573813521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139 (or 1710 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 573813521 is about 23954.4050437493. The cubic root of 573813521 is about 830.9794027090.

The spelling of 573813521 in words is "five hundred seventy-three million, eight hundred thirteen thousand, five hundred twenty-one".