549044613 has 12 divisors (see below), whose sum is σ = 854069580. Its totient is φ = 337873536.

The previous prime is 549044609. The next prime is 549044623. The reversal of 549044613 is 316440945.

It can be written as a sum of positive squares in 2 ways, for example, as 114447204 + 434597409 = 10698^2 + 20847^2 .

It is not a de Polignac number, because 549044613 - 2² = 549044609 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549044623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2346228 + ... + 2346461.

It is an arithmetic number, because the mean of its divisors is an integer number (71172465).

Almost surely, 2^549044613 is an apocalyptic number.

It is an amenable number.

549044613 is a deficient number, since it is larger than the sum of its proper divisors (305024967).

549044613 is a wasteful number, since it uses less digits than its factorization.

549044613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692708 (or 4692705 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 549044613 is about 23431.7010266007. The cubic root of 549044613 is about 818.8465902556.

The spelling of 549044613 in words is "five hundred forty-nine million, forty-four thousand, six hundred thirteen".