549058 has 4 divisors (see below), whose sum is σ = 823590. Its totient is φ = 274528.

The previous prime is 549037. The next prime is 549071. The reversal of 549058 is 850945.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 850945 = 5 ⋅170189.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 34969 = 717^2 + 187^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137263 + ... + 137266.

2⁵⁴⁹⁰⁵⁸ is an apocalyptic number.

549058 is a deficient number, since it is larger than the sum of its proper divisors (274532).

549058 is a wasteful number, since it uses less digits than its factorization.

549058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274531.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 549058 is about 740.9844802693. The cubic root of 549058 is about 81.8853245337.

The spelling of 549058 in words is "five hundred forty-nine thousand, fifty-eight".