549453 has 4 divisors (see below), whose sum is σ = 732608. Its totient is φ = 366300.

The previous prime is 549449. The next prime is 549481. The reversal of 549453 is 354945.

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 not a de Polignac number, because 549453 - 2² = 549449 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549403) 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, 91573 + ... + 91578.

It is an arithmetic number, because the mean of its divisors is an integer number (183152).

2⁵⁴⁹⁴⁵³ is an apocalyptic number.

It is an amenable number.

549453 is a deficient number, since it is larger than the sum of its proper divisors (183155).

549453 is a wasteful number, since it uses less digits than its factorization.

549453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183154.

The product of its digits is 10800, while the sum is 30.

The square root of 549453 is about 741.2509696452. The cubic root of 549453 is about 81.9049563090.

The spelling of 549453 in words is "five hundred forty-nine thousand, four hundred fifty-three".