Design a vibrant digital artwork showcasing the number "2025" in a bold sans serif typeface, adhering to a flat design aesthetic. The text should be filled with bright, colorful hues, framed by a thin white border and featuring a small drop shadow for added dimension. Set against a stark white studio background, use soft studio lighting to illuminate the text, ensuring it stands out vividly. The image should evoke a sense of friendliness and positivity, making it appealing to a wide audience.