550305564 has 12 divisors (see below), whose sum is σ = 1284046344. Its totient is φ = 183435184.

The previous prime is 550305559. The next prime is 550305577. The reversal of 550305564 is 465503055.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22929387 + ... + 22929410.

It is an arithmetic number, because the mean of its divisors is an integer number (107003862).

Almost surely, 2^550305564 is an apocalyptic number.

It is an amenable number.

550305564 is an abundant number, since it is smaller than the sum of its proper divisors (733740780).

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

550305564 is a wasteful number, since it uses less digits than its factorization.

550305564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45858804 (or 45858802 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 550305564 is about 23458.5925409007. The cubic root of 550305564 is about 819.4729728647.

The spelling of 550305564 in words is "five hundred fifty million, three hundred five thousand, five hundred sixty-four".