If you want to apply through SDS it's not enough. I heard SDS requires at least minimum band of 6.5. But trough general application it's possible to apply with this kind of score. Some people applied with only toefl 80 scores. Which is same as a 5.5-6 in Ielts. But you need to convince the IRCC. If you are in programs like Business Management and your writing,reading score is in area 5.0-5.5 they will certainly refuse. But for a best result you should at least increase your reading score. Which is easiest part of the test.