550771650 has 288 divisors, whose sum is σ = 1808509248. Its totient is φ = 122860800.

The previous prime is 550771643. The next prime is 550771651. The reversal of 550771650 is 56177055.

It is not an unprimeable number, because it can be changed into a prime (550771651) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1737292 + ... + 1737608.

It is an arithmetic number, because the mean of its divisors is an integer number (6279546).

Almost surely, 2^550771650 is an apocalyptic number.

550771650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 550771650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904254624).

550771650 is an abundant number, since it is smaller than the sum of its proper divisors (1257737598).

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

550771650 is a wasteful number, since it uses less digits than its factorization.

550771650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 550771650 is about 23468.5246660288. The cubic root of 550771650 is about 819.7042607923.

The spelling of 550771650 in words is "five hundred fifty million, seven hundred seventy-one thousand, six hundred fifty".