8185214550 has 96 divisors (see below), whose sum is σ = 20690640000. Its totient is φ = 2140821760.

The previous prime is 8185214537. The next prime is 8185214599. The reversal of 8185214550 is 554125818.

It is a junction number, because it is equal to n+sod(n) for n = 8185214499 and 8185214508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5459701 + ... + 5461199.

It is an arithmetic number, because the mean of its divisors is an integer number (215527500).

Almost surely, 2^8185214550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8185214550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10345320000).

8185214550 is an abundant number, since it is smaller than the sum of its proper divisors (12505425450).

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

8185214550 is a wasteful number, since it uses less digits than its factorization.

8185214550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 39.

The square root of 8185214550 is about 90472.1755569081. The cubic root of 8185214550 is about 2015.3169420196.

The spelling of 8185214550 in words is "eight billion, one hundred eighty-five million, two hundred fourteen thousand, five hundred fifty".