# 2053

This number is a prime.

Stargazers will get a rare triple planetary treat in November 2053, when Mercury, Mars, and Jupiter all lie within a circle of less than one degree in diameter. Recreational math circles will no less be celebrating the fact that 2053# - 1 is a primorial prime.

The smallest prime reversal of a sphenic number s where the prime factors of s are a single-digit, a 2-digit and a 3-digit prime, i.e., 3502 = 2 × 17 × 103. [Loungrides]

(There are 2 curios for this number that have not yet been approved by an editor.)

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