550466640 has 120 divisors (see below), whose sum is σ = 1876406688. Its totient is φ = 144587520.

The previous prime is 550466633. The next prime is 550466671. The reversal of 550466640 is 46664055.

550466640 = T₄₂₉ + T₄₃₀ + ... + T₁₅₀₀.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 550466595 and 550466604.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 42535 + ... + 53945.

Almost surely, 2^550466640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550466640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938203344).

550466640 is an abundant number, since it is smaller than the sum of its proper divisors (1325940048).

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

550466640 is a wasteful number, since it uses less digits than its factorization.

550466640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11497 (or 11488 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 550466640 is about 23462.0254880093. The cubic root of 550466640 is about 819.5529190865.

The spelling of 550466640 in words is "five hundred fifty million, four hundred sixty-six thousand, six hundred forty".