550592640 has 640 divisors, whose sum is σ = 2280801600. Its totient is φ = 125411328.

The previous prime is 550592573. The next prime is 550592657. The reversal of 550592640 is 46295055.

550592640 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 9 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

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 = 550592595 and 550592604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12804459 + ... + 12804501.

Almost surely, 2^550592640 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 550592640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140400800).

550592640 is an abundant number, since it is smaller than the sum of its proper divisors (1730208960).

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

550592640 is a wasteful number, since it uses less digits than its factorization.

550592640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 550592640 is about 23464.7105245302. The cubic root of 550592640 is about 819.6154453036.

The spelling of 550592640 in words is "five hundred fifty million, five hundred ninety-two thousand, six hundred forty".