51222286 has 8 divisors (see below), whose sum is σ = 77111640. Its totient is φ = 25518408.

The previous prime is 51222253. The next prime is 51222289. The reversal of 51222286 is 68222215.

51222286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51222289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45676 + ... + 46783.

It is an arithmetic number, because the mean of its divisors is an integer number (9638955).

Almost surely, 2^51222286 is an apocalyptic number.

51222286 is a deficient number, since it is larger than the sum of its proper divisors (25889354).

51222286 is a wasteful number, since it uses less digits than its factorization.

51222286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92738.

The product of its digits is 3840, while the sum is 28.

The square root of 51222286 is about 7156.9746401674. The cubic root of 51222286 is about 371.3809751493.

The spelling of 51222286 in words is "fifty-one million, two hundred twenty-two thousand, two hundred eighty-six".