550564 has 27 divisors (see below), whose sum is σ = 1142337. Its totient is φ = 231504.

The previous prime is 550553. The next prime is 550577. The reversal of 550564 is 465055.

The square root of 550564 is 742.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 396900 + 153664 = 630^2 + 392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10362 + ... + 10414.

2⁵⁵⁰⁵⁶⁴ is an apocalyptic number.

550564 is the 742-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550564

550564 is an abundant number, since it is smaller than the sum of its proper divisors (591773).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550564 is a wasteful number, since it uses less digits than its factorization.

550564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The cubic root of 550564 is about 81.9601233833.

Multiplying 550564 by its sum of digits (25), we get a square (13764100 = 3710²).

The spelling of 550564 in words is "five hundred fifty thousand, five hundred sixty-four".