546521 has 4 divisors (see below), whose sum is σ = 548772. Its totient is φ = 544272.

The previous prime is 546509. The next prime is 546523. The reversal of 546521 is 125645.

546521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105625 + 440896 = 325^2 + 664^2 .

It is a cyclic number.

It is not a de Polignac number, because 546521 - 2¹⁰ = 545497 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 546521.

It is not an unprimeable number, because it can be changed into a prime (546523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710 + ... + 1263.

It is an arithmetic number, because the mean of its divisors is an integer number (137193).

2⁵⁴⁶⁵²¹ is an apocalyptic number.

It is an amenable number.

546521 is a deficient number, since it is larger than the sum of its proper divisors (2251).

546521 is a wasteful number, since it uses less digits than its factorization.

546521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its digits is 1200, while the sum is 23.

The square root of 546521 is about 739.2705864567. The cubic root of 546521 is about 81.7590088798.

The spelling of 546521 in words is "five hundred forty-six thousand, five hundred twenty-one".