550544455 has 4 divisors (see below), whose sum is σ = 660653352. Its totient is φ = 440435560.

The previous prime is 550544453. The next prime is 550544461. The reversal of 550544455 is 554445055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 550544455 - 2¹ = 550544453 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 (550544453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55054441 + ... + 55054450.

It is an arithmetic number, because the mean of its divisors is an integer number (165163338).

Almost surely, 2^550544455 is an apocalyptic number.

550544455 is a deficient number, since it is larger than the sum of its proper divisors (110108897).

550544455 is a wasteful number, since it uses less digits than its factorization.

550544455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110108896.

The product of its (nonzero) digits is 200000, while the sum is 37.

The square root of 550544455 is about 23463.6837474426. The cubic root of 550544455 is about 819.5915351145.

The spelling of 550544455 in words is "five hundred fifty million, five hundred forty-four thousand, four hundred fifty-five".