549081401 has 16 divisors (see below), whose sum is σ = 618105600. Its totient is φ = 483463680.

The previous prime is 549081373. The next prime is 549081427. The reversal of 549081401 is 104180945.

It is a cyclic number.

It is not a de Polignac number, because 549081401 - 2¹⁴ = 549065017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549081101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44675 + ... + 55623.

It is an arithmetic number, because the mean of its divisors is an integer number (38631600).

Almost surely, 2^549081401 is an apocalyptic number.

It is an amenable number.

549081401 is a deficient number, since it is larger than the sum of its proper divisors (69024199).

549081401 is a wasteful number, since it uses less digits than its factorization.

549081401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 549081401 is about 23432.4860183464. The cubic root of 549081401 is about 818.8648784207.

The spelling of 549081401 in words is "five hundred forty-nine million, eighty-one thousand, four hundred one".