550442945 has 8 divisors (see below), whose sum is σ = 711341736. Its totient is φ = 406480896.

The previous prime is 550442933. The next prime is 550442947. The reversal of 550442945 is 549244055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34199104 + 516243841 = 5848^2 + 22721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550442945 - 2¹⁶ = 550377409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550442899 and 550442908.

It is not an unprimeable number, because it can be changed into a prime (550442947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4234112 + ... + 4234241.

It is an arithmetic number, because the mean of its divisors is an integer number (88917717).

Almost surely, 2^550442945 is an apocalyptic number.

It is an amenable number.

550442945 is a deficient number, since it is larger than the sum of its proper divisors (160898791).

550442945 is a wasteful number, since it uses less digits than its factorization.

550442945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8468371.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 550442945 is about 23461.5205176476. The cubic root of 550442945 is about 819.5411596182.

The spelling of 550442945 in words is "five hundred fifty million, four hundred forty-two thousand, nine hundred forty-five".