555 (number)

555 (five hundred [and] fifty-five) is the natural number following 554 and preceding 556.

This article is about the integer. For the telephone number, see 555 (telephone number). For other uses, see 555 (disambiguation).
← 554 555 556 →
Cardinalfive hundred fifty-five
Ordinal555th
(five hundred fifty-fifth)
Factorization3 × 5 × 37
Greek numeralΦΝΕ´
Roman numeralDLV
Binary10001010112
Ternary2021203
Senary23236
Octal10538
Duodecimal3A312
Hexadecimal22B16

In mathematics

555 is a sphenic number. In base 10, it is a repdigit, and because it is divisible by the sum of its digits, it is a Harshad number. It is also a Harshad number in binary, base 11, base 13 and hexadecimal.

    It is the sum of the first decimal three-digit permutable primes:

    .

    Telephone numbers

    The NANP reserves telephone numbers in many dialing areas in the 555 local block for fictional purposes, such as 1-308-555-3485.

    Numerology and Spirituality

    In numerology and New Age spirituality, the number 555 is considered an angel number, which is a symbol that conveys messages from one's spirit guides, or the metaphysical world. Some of the meanings applied to the 555 angel number are derived from the 6th century BCE philosopher Pythagoras, who believed in the sacred power of numbers, as well as from other esoteric beliefs, including numerology, astrology, and the tarot. While meanings vary depending on the interpreter, the angel number 555 is generally associated with change, transformation, healing, and good luck.[1]

    1. Stanton, Kristen M. (May 13, 2022). "555 Meaning and the 555 Angel Number". UniGuide. Archived from the original on October 7, 2022. Retrieved October 7, 2022.
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