51117122 has 16 divisors (see below), whose sum is σ = 89284032. Its totient is φ = 21493680.

The previous prime is 51117103. The next prime is 51117167. The reversal of 51117122 is 22171115.

It is a happy number.

51117122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51117122² = 5225920323125768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51117094 and 51117103.

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 7 ways as a sum of consecutive naturals, for example, 33704 + ... + 35187.

It is an arithmetic number, because the mean of its divisors is an integer number (5580252).

Almost surely, 2^51117122 is an apocalyptic number.

51117122 is a deficient number, since it is larger than the sum of its proper divisors (38166910).

51117122 is a wasteful number, since it uses less digits than its factorization.

51117122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68953.

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

The square root of 51117122 is about 7149.6239061925. The cubic root of 51117122 is about 371.1266414020.

Adding to 51117122 its reverse (22171115), we get a palindrome (73288237).

The spelling of 51117122 in words is "fifty-one million, one hundred seventeen thousand, one hundred twenty-two".