51171122 has 8 divisors (see below), whose sum is σ = 81271836. Its totient is φ = 24080512.

The previous prime is 51171103. The next prime is 51171137. The reversal of 51171122 is 22117115.

It is a happy number.

51171122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50993881 + 177241 = 7141^2 + 421^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 51171094 and 51171103.

It is an unprimeable number.

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, 752483 + ... + 752550.

Almost surely, 2^51171122 is an apocalyptic number.

51171122 is a deficient number, since it is larger than the sum of its proper divisors (30100714).

51171122 is a wasteful number, since it uses less digits than its factorization.

51171122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505052.

The product of its digits is 140, while the sum is 20.

The square root of 51171122 is about 7153.3993317863. The cubic root of 51171122 is about 371.2572811626.

Adding to 51171122 its reverse (22117115), we get a palindrome (73288237).

The spelling of 51171122 in words is "fifty-one million, one hundred seventy-one thousand, one hundred twenty-two".