549949845 has 16 divisors (see below), whose sum is σ = 882250560. Its totient is φ = 292529664.

The previous prime is 549949843. The next prime is 549949853. The reversal of 549949845 is 548949945.

It is not a de Polignac number, because 549949845 - 2¹ = 549949843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549949843) 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, 42684 + ... + 54053.

It is an arithmetic number, because the mean of its divisors is an integer number (55140660).

Almost surely, 2^549949845 is an apocalyptic number.

It is an amenable number.

549949845 is a deficient number, since it is larger than the sum of its proper divisors (332300715).

549949845 is a wasteful number, since it uses less digits than its factorization.

549949845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97124.

The product of its digits is 9331200, while the sum is 57.

The square root of 549949845 is about 23451.0094665454. The cubic root of 549949845 is about 819.2963649597.

The spelling of 549949845 in words is "five hundred forty-nine million, nine hundred forty-nine thousand, eight hundred forty-five".