550000

550,000, written as five hundred fifty thousand, is the integer that follows 549,999 and precedes 550,001. It is a composite number and a round figure in base-10, characterized by three trailing zeros.

Mathematical properties: 550,000 = 2^4 × 5^5 × 11. Because of its factorization, it is divisible by 16 and by 125, and it can be expressed as 11 × 50,000 and 55 × 10,000. The approximate square root is about 741.6, since 741^2 < 550,000 < 742^2.

Representations: In binary, 550,000 is 10000110010001110000; in hexadecimal, it is 0x86470. The decimal form has six digits, and the sum of its digits is 10.

Usage and significance: As a round, easily communicable quantity, 550,000 appears in statistics, budgeting, and population estimates as a milestone between hundreds of thousands and millions. It is commonly used in examples to illustrate scaling of large counts, and serves as a convenient reference point in discussions of large numerical figures.

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