550443564 has 72 divisors (see below), whose sum is σ = 1566888960. Its totient is φ = 161416800.

The previous prime is 550443563. The next prime is 550443599. The reversal of 550443564 is 465344055.

550443564 is a `hidden beast` number, since 5 + 50 + 4 + 43 + 564 = 666.

It is a super-3 number, since 3×550443564³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (550443563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10144 + ... + 34695.

Almost surely, 2^550443564 is an apocalyptic number.

It is an amenable number.

550443564 is an abundant number, since it is smaller than the sum of its proper divisors (1016445396).

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

550443564 is a wasteful number, since it uses less digits than its factorization.

550443564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44891 (or 44886 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 550443564 is about 23461.5337094573. The cubic root of 550443564 is about 819.5414668227.

The spelling of 550443564 in words is "five hundred fifty million, four hundred forty-three thousand, five hundred sixty-four".