546573221 has 4 divisors (see below), whose sum is σ = 546903552. Its totient is φ = 546242892.

The previous prime is 546573217. The next prime is 546573253. The reversal of 546573221 is 122375645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 546573221 - 2² = 546573217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546573211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 162671 + ... + 165996.

It is an arithmetic number, because the mean of its divisors is an integer number (136725888).

Almost surely, 2^546573221 is an apocalyptic number.

It is an amenable number.

546573221 is a deficient number, since it is larger than the sum of its proper divisors (330331).

546573221 is a wasteful number, since it uses less digits than its factorization.

546573221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330330.

The product of its digits is 50400, while the sum is 35.

The square root of 546573221 is about 23378.9054705305. The cubic root of 546573221 is about 817.6161286707.

The spelling of 546573221 in words is "five hundred forty-six million, five hundred seventy-three thousand, two hundred twenty-one".