25:30:36:45 is a half-diminished seventh chord found on iiiø7 5⁄4 and viø7 (5⁄3) in the duodene.

Chord information
Harmonics 25:30:36:45
Subharmonics 1/(36:30:25:20)
Intervals from root 1/1–6/5–36/25–9/5
Cents from root 0¢–316¢–631¢–1018¢
Step intervals 6/5, 6/5, 5/4
Step cents 316¢, 316¢, 386¢
Prime limit 5
Genus 32⋅52 (225)
Intervallic odd limit 25
Otonal odd limit 45
Utonal odd limit 25
Consistent edos (d ≥ 2) 19edo**, 34edo*, 38edo*, 46edo*, …