possible to install 32 bit rpm package on centos 64

[root@localhost tmp]# rpm -i couchbase-server-enterprise_x86_
couchbase-server-enterprise_x86_2.5.0-1059-rel.rpm couchbase-server-enterprise_x86_64_2.2.0-821-rel.rpm
[root@localhost tmp]# rpm -i couchbase-server-enterprise_x86_2.5.0-1059-rel.rpm
Minimum RAM required : 4 GB
System RAM configured : 3945388 kB

Minimum number of processors required : 4 cores
Number of processors on the system : 4 cores

ERROR: The machine architecture does not match this build
of the software. For example, installing a 32-bit build
on a 64-bit machine, or vice-versa. Please uninstall and
install a build with a matching architecture.

error: %post(couchbase-server-2.5.0-1059.i386) scriptlet failed, exit status 1
Starting couchbase-server[ OK ]

You have successfully installed Couchbase Server.
Please browse to http://localhost.localdomain:8091/ to configure your server.
Please refer to http://couchbase.com for additional resources.

Please note that you have to update your firewall configuration to
allow connections to the following ports: 11211, 11210, 11209, 4369,
8091, 8092, 18091, 18092, 11214, 11215 and from 21100 to 21299.

By using this software you agree to the End User License Agreement.
See /opt/couchbase/LICENSE.txt.

[root@localhost tmp]# cat /etc/rele
cat: /etc/lsb-release.d: Is a directory
CentOS release 5.7 (Final)
[root@localhost tmp]# uname -m
x86_64

[root@localhost tmp]# /etc/init.d/couchbase-server status
couchbase-server is running