546554821 has 4 divisors (see below), whose sum is σ = 548312544. Its totient is φ = 544797100.

The previous prime is 546554803. The next prime is 546554839. The reversal of 546554821 is 128455645.

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 an interprime number because it is at equal distance from previous prime (546554803) and next prime (546554839).

It is a cyclic number.

It is not a de Polignac number, because 546554821 - 2¹³ = 546546629 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 (546524821) 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, 878395 + ... + 879016.

It is an arithmetic number, because the mean of its divisors is an integer number (137078136).

Almost surely, 2^546554821 is an apocalyptic number.

It is an amenable number.

546554821 is a deficient number, since it is larger than the sum of its proper divisors (1757723).

546554821 is a wasteful number, since it uses less digits than its factorization.

546554821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757722.

The product of its digits is 192000, while the sum is 40.

The square root of 546554821 is about 23378.5119500793. The cubic root of 546554821 is about 817.6069537453.

The spelling of 546554821 in words is "five hundred forty-six million, five hundred fifty-four thousand, eight hundred twenty-one".