58 (number) - Definition and Overview

58 is the natural number following 57 and preceding 59.

In mathematics

Fifty-eight is the sum of the first seven prime numbers, an 11-gonal number, and a Smith number. Given 58, the Mertens function returns 0. There is no answer to the equation x - φ(x) = 58, making 58 a noncototient.

In science

• The atomic number of cerium, a lanthanide

In astronomy,

Messier object M58, a magnitude 11.0 galaxy in the constellation Virgo

The New General Catalogue object (http://www.ngcic.org/) NGC 58, a barred spiral galaxy in the constellation Cetus. It is also the object designated as NGC 47

The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros1-175.html) of the solar eclipse series which began on -1114 June 7 and ended on 166 July 14. The duration of Saros series 58 was 1280.1 years, and it contained 72 solar eclipses.

The Saros number (http://sunearth.gsfc.nasa.gov/eclipse/LEsaros/LEsaros1-175.html) of the lunar eclipse series which began on -812 March 16 and ended on 486 May 4. The duration of Saros series 58 was 1298.1 years, and it contained 73 lunar eclipses.

In other fields

Fifty-eight is also:

• The code for international direct dial phone calls to Venezuela.
• Part of the title of a collection of songs by Esther Lee, Fifty-Eight Now Nine.
• The year AD 58, 58 BC, or 1958.