Number 553 is not a prime number. It is a composite number.

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. We do not consider 553 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 553 below).

Number of factors: 4.

List of factors/divisors: 1, 7, 79, 553.

Parity: 553 is an odd number.

Perfect square: no (a square number or perfect square is an integer that is the square of an integer).

Perfect number: no, because the sum of its proper divisors is 87 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 546 no | 547 yes | 548 no | 549 no | 550 no | 551 no | 552 no | 553 no | 554 no | 555 no | 556 no | 557 yes | 558 no | 559 no | 560 no |
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