<PAGE>
FILE NO. 333-13649
RULE 424(B)(3)
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED JULY 7, 1997)
(TO PROSPECTUS SUPPLEMENT DATED JULY 7, 1997)
PROSPECTUS NUMBER: 1586
DATED: SEPTEMBER 24, 1997
MERRILL LYNCH & CO., INC.
MEDIUM-TERM NOTES, SERIES B
DUE NINE MONTHS OR MORE FROM DATE OF ISSUE
FIXED RATE NOTES
<TABLE>
<CAPTION>
<S> <C>
BASE RATE: Fixed
INDEX MATURITY: N/A
TRADE DATE: September 24, 1997
SETTLEMENT DATE: September 26, 1997
MATURITY DATE: September 27, 1999
REDEMPTION DATE: N/A
OPTIONAL REPAYMENT DATES: N/A
SPREAD: N/A
SPREAD MULTIPLIER: N/A
MAXIMUM INTEREST RATE: N/A
MINIMUM INTEREST RATE: N/A
INTEREST RESET DATES: N/A
INTEREST PAYMENT DATES: 15th of May & November and Maturity. (short first and last coupon)
INITIAL INTEREST RATE: 6.07000%
FORM: Book-entry
</TABLE>