Next prime | 53 |

Previous prime | 43 |

Octal | (57)_{8} |

Hexadecimal | (2F)_{16} |

Prime gap | 6 |

10th Sexy prime (the small number) | The big number is 53 . |

8th Prime of the Form 4n+3 | |

3rd Euler prime number | |

4th Double factorial prime | 6!! - 1 |

5th Safe prime | |

10th Left-truncatable prime |