8251427222 has 4 divisors (see below), whose sum is σ = 12377140836. Its totient is φ = 4125713610.

The previous prime is 8251427221. The next prime is 8251427227. The reversal of 8251427222 is 2227241528.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8251427221) by changing a digit.

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 as a sum of consecutive naturals, namely, 2062856804 + ... + 2062856807.

It is an arithmetic number, because the mean of its divisors is an integer number (3094285209).

Almost surely, 2^8251427222 is an apocalyptic number.

8251427222 is a deficient number, since it is larger than the sum of its proper divisors (4125713614).

8251427222 is a wasteful number, since it uses less digits than its factorization.

8251427222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125713613.

The product of its digits is 35840, while the sum is 35.

The square root of 8251427222 is about 90837.3668816969. The cubic root of 8251427222 is about 2020.7365237272.

The spelling of 8251427222 in words is "eight billion, two hundred fifty-one million, four hundred twenty-seven thousand, two hundred twenty-two".