549430461 has 6 divisors (see below), whose sum is σ = 793621790. Its totient is φ = 366286968.

The previous prime is 549430451. The next prime is 549430487. The reversal of 549430461 is 164034945.

It can be written as a sum of positive squares in only one way, i.e., 391802436 + 157628025 = 19794^2 + 12555^2 .

It is not a de Polignac number, because 549430461 - 2⁶ = 549430397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549430411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30523906 + ... + 30523923.

Almost surely, 2^549430461 is an apocalyptic number.

It is an amenable number.

549430461 is a deficient number, since it is larger than the sum of its proper divisors (244191329).

549430461 is a wasteful number, since it uses less digits than its factorization.

549430461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61047835 (or 61047832 counting only the distinct ones).

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

The square root of 549430461 is about 23439.9330417132. The cubic root of 549430461 is about 819.0383635820.

The spelling of 549430461 in words is "five hundred forty-nine million, four hundred thirty thousand, four hundred sixty-one".