850221040050 has 90 divisors (see below), whose sum is σ = 2362517960583. Its totient is φ = 226709962560.

The previous prime is 850221040049. The next prime is 850221040051. The reversal of 850221040050 is 50040122058.

It is a happy number.

850221040050 is a `hidden beast` number, since 8 + 502 + 2 + 104 + 0 + 0 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (850221040049) and next prime (850221040051).

It can be written as a sum of positive squares in 5 ways, for example, as 51344387649 + 798876652401 = 226593^2 + 893799^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=652005.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 850221039996 and 850221040023.

It is not an unprimeable number, because it can be changed into a prime (850221040051) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 58673206 + ... + 58687694.

Almost surely, 2^850221040050 is an apocalyptic number.

850221040050 is an abundant number, since it is smaller than the sum of its proper divisors (1512296920533).

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

850221040050 is an frugal number, since it uses more digits than its factorization.

850221040050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29002 (or 14499 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 850221040050 in words is "eight hundred fifty billion, two hundred twenty-one million, forty thousand, fifty".