550150221 has 8 divisors (see below), whose sum is σ = 736578304. Its totient is φ = 365244480.

The previous prime is 550150171. The next prime is 550150231. The reversal of 550150221 is 122051055.

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

It is not a de Polignac number, because 550150221 - 2⁷ = 550150093 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 (550150231) 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 7 ways as a sum of consecutive naturals, for example, 379741 + ... + 381186.

It is an arithmetic number, because the mean of its divisors is an integer number (92072288).

Almost surely, 2^550150221 is an apocalyptic number.

It is an amenable number.

550150221 is a deficient number, since it is larger than the sum of its proper divisors (186428083).

550150221 is a wasteful number, since it uses less digits than its factorization.

550150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761171.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 550150221 is about 23455.2813029390. The cubic root of 550150221 is about 819.3958573017.

The spelling of 550150221 in words is "five hundred fifty million, one hundred fifty thousand, two hundred twenty-one".