42526...38061 (33-digits)

This number is a prime.

                                        425 2603764690 8043495737 5449438061

The smallest prime formed from the concatenation of the first n terms of "Madonna's Sequence," which is generated by adding 1 (mod 10) to each digit in the decimal expansion of π (if the digit is 9, it becomes a 0). [Dowdy]