51443122 has 8 divisors (see below), whose sum is σ = 81703836. Its totient is φ = 24208512.

The previous prime is 51443101. The next prime is 51443123. The reversal of 51443122 is 22134415.

51443122 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 51423241 + 19881 = 7171^2 + 141^2 .

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

It is a super-2 number, since 2×51443122² = 5292789602213768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51443093 and 51443102.

It is not an unprimeable number, because it can be changed into a prime (51443123) 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, 756483 + ... + 756550.

Almost surely, 2^51443122 is an apocalyptic number.

51443122 is a deficient number, since it is larger than the sum of its proper divisors (30260714).

51443122 is a wasteful number, since it uses less digits than its factorization.

51443122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513052.

The product of its digits is 960, while the sum is 22.

The square root of 51443122 is about 7172.3860743828. The cubic root of 51443122 is about 371.9139248571.

Adding to 51443122 its reverse (22134415), we get a palindrome (73577537).

The spelling of 51443122 in words is "fifty-one million, four hundred forty-three thousand, one hundred twenty-two".