550550144 has 32 divisors (see below), whose sum is σ = 1099718100. Its totient is φ = 274542592.

The previous prime is 550550129. The next prime is 550550153. The reversal of 550550144 is 441055055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 499969600 + 50580544 = 22360^2 + 7112^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×550550144² = 606210922116841472, which contains 22 as substring.

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, 44264 + ... + 55320.

Almost surely, 2^550550144 is an apocalyptic number.

It is an amenable number.

550550144 is a deficient number, since it is larger than the sum of its proper divisors (549167956).

550550144 is a wasteful number, since it uses less digits than its factorization.

550550144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460 (or 11448 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 550550144 is about 23463.8049770279. The cubic root of 550550144 is about 819.5943581625.

The spelling of 550550144 in words is "five hundred fifty million, five hundred fifty thousand, one hundred forty-four".