549801 has 16 divisors (see below), whose sum is σ = 931200. Its totient is φ = 314064.

The previous prime is 549767. The next prime is 549817. The reversal of 549801 is 108945.

549801 = 39² + 40² + ... + 119².

It is not a de Polignac number, because 549801 - 2⁶ = 549737 is a prime.

It is a super-2 number, since 2×549801² = 604562279202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549801.

It is not an unprimeable number, because it can be changed into a prime (549001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1266 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (58200).

2⁵⁴⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

549801 is a deficient number, since it is larger than the sum of its proper divisors (381399).

549801 is a wasteful number, since it uses less digits than its factorization.

549801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2919 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 549801 is about 741.4856707988. The cubic root of 549801 is about 81.9222443570.

The spelling of 549801 in words is "five hundred forty-nine thousand, eight hundred one".