51113122 has 4 divisors (see below), whose sum is σ = 76669686. Its totient is φ = 25556560.

The previous prime is 51113119. The next prime is 51113129. The reversal of 51113122 is 22131115.

51113122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22131115 = 5 ⋅4426223.

It can be written as a sum of positive squares in only one way, i.e., 42107121 + 9006001 = 6489^2 + 3001^2 .

It is a super-2 number, since 2×51113122² = 5225102481173768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51113096 and 51113105.

It is not an unprimeable number, because it can be changed into a prime (51113129) 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 as a sum of consecutive naturals, namely, 12778279 + ... + 12778282.

Almost surely, 2^51113122 is an apocalyptic number.

51113122 is a deficient number, since it is larger than the sum of its proper divisors (25556564).

51113122 is a wasteful number, since it uses less digits than its factorization.

51113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25556563.

The product of its digits is 60, while the sum is 16.

The square root of 51113122 is about 7149.3441657260. The cubic root of 51113122 is about 371.1169607234.

Adding to 51113122 its reverse (22131115), we get a palindrome (73244237).

The spelling of 51113122 in words is "fifty-one million, one hundred thirteen thousand, one hundred twenty-two".