549995 has 8 divisors (see below), whose sum is σ = 663984. Its totient is φ = 437344.

The previous prime is 549979. The next prime is 550007. The reversal of 549995 is 599945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 549995 - 2⁴ = 549979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1412 + ... + 1758.

It is an arithmetic number, because the mean of its divisors is an integer number (82998).

2⁵⁴⁹⁹⁹⁵ is an apocalyptic number.

549995 is a deficient number, since it is larger than the sum of its proper divisors (113989).

549995 is a wasteful number, since it uses less digits than its factorization.

549995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669.

The product of its digits is 72900, while the sum is 41.

The square root of 549995 is about 741.6164777026. The cubic root of 549995 is about 81.9318787801.

The spelling of 549995 in words is "five hundred forty-nine thousand, nine hundred ninety-five".