549425 has 6 divisors (see below), whose sum is σ = 681318. Its totient is φ = 439520.

The previous prime is 549421. The next prime is 549431. The reversal of 549425 is 524945.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 29584 + 519841 = 172^2 + 721^2 .

It is not a de Polignac number, because 549425 - 2² = 549421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10964 + ... + 11013.

It is an arithmetic number, because the mean of its divisors is an integer number (113553).

2⁵⁴⁹⁴²⁵ is an apocalyptic number.

It is an amenable number.

549425 is a deficient number, since it is larger than the sum of its proper divisors (131893).

549425 is a wasteful number, since it uses less digits than its factorization.

549425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21987 (or 21982 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 549425 is about 741.2320824141. The cubic root of 549425 is about 81.9035649994.

The spelling of 549425 in words is "five hundred forty-nine thousand, four hundred twenty-five".