550649448 has 128 divisors (see below), whose sum is σ = 1675728000. Its totient is φ = 166763520.

The previous prime is 550649399. The next prime is 550649453. The reversal of 550649448 is 844946055.

550649448 is a `hidden beast` number, since 550 + 6 + 4 + 94 + 4 + 8 = 666.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 103903 + ... + 109073.

It is an arithmetic number, because the mean of its divisors is an integer number (13091625).

Almost surely, 2^550649448 is an apocalyptic number.

550649448 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550649448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (837864000).

550649448 is an abundant number, since it is smaller than the sum of its proper divisors (1125078552).

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

550649448 is a wasteful number, since it uses less digits than its factorization.

550649448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 550649448 is about 23465.9209919406. The cubic root of 550649448 is about 819.6436325753.

The spelling of 550649448 in words is "five hundred fifty million, six hundred forty-nine thousand, four hundred forty-eight".