550555549 has 8 divisors (see below), whose sum is σ = 563725440. Its totient is φ = 537531456.

The previous prime is 550555547. The next prime is 550555613. The reversal of 550555549 is 945555055.

550555549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550555549 - 2¹ = 550555547 is a prime.

It is a super-2 number, since 2×550555549² = 606222825069382802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550555543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28789 + ... + 43930.

It is an arithmetic number, because the mean of its divisors is an integer number (70465680).

Almost surely, 2^550555549 is an apocalyptic number.

It is an amenable number.

550555549 is a deficient number, since it is larger than the sum of its proper divisors (13169891).

550555549 is a wasteful number, since it uses less digits than its factorization.

550555549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72899.

The product of its (nonzero) digits is 562500, while the sum is 43.

The square root of 550555549 is about 23463.9201541430. The cubic root of 550555549 is about 819.5970402633.

The spelling of 550555549 in words is "five hundred fifty million, five hundred fifty-five thousand, five hundred forty-nine".