550730646 has 48 divisors (see below), whose sum is σ = 1213954560. Its totient is φ = 180414000.

The previous prime is 550730633. The next prime is 550730651. The reversal of 550730646 is 646037055.

550730646 is a `hidden beast` number, since 5 + 5 + 0 + 7 + 3 + 0 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 550730646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356151 + ... + 357693.

It is an arithmetic number, because the mean of its divisors is an integer number (25290720).

Almost surely, 2^550730646 is an apocalyptic number.

550730646 is an abundant number, since it is smaller than the sum of its proper divisors (663223914).

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

550730646 is a wasteful number, since it uses less digits than its factorization.

550730646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 550730646 is about 23467.6510541639. The cubic root of 550730646 is about 819.6839184310.

The spelling of 550730646 in words is "five hundred fifty million, seven hundred thirty thousand, six hundred forty-six".