8755772550 has 96 divisors (see below), whose sum is σ = 25048611072. Its totient is φ = 1982590080.

The previous prime is 8755772479. The next prime is 8755772561. The reversal of 8755772550 is 552775578.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8755772493 and 8755772502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73384 + ... + 151316.

It is an arithmetic number, because the mean of its divisors is an integer number (260923032).

Almost surely, 2^8755772550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8755772550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12524305536).

8755772550 is an abundant number, since it is smaller than the sum of its proper divisors (16292838522).

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

8755772550 is a wasteful number, since it uses less digits than its factorization.

8755772550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78062 (or 78057 counting only the distinct ones).

The product of its (nonzero) digits is 3430000, while the sum is 51.

The square root of 8755772550 is about 93572.2851596561. The cubic root of 8755772550 is about 2061.0956993466.

The spelling of 8755772550 in words is "eight billion, seven hundred fifty-five million, seven hundred seventy-two thousand, five hundred fifty".