51116144 has 20 divisors (see below), whose sum is σ = 104863824. Its totient is φ = 24054528.

The previous prime is 51116113. The next prime is 51116159. The reversal of 51116144 is 44161115.

It is a happy number.

51116144 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 2×51116144² = 5225720354857472, which contains 22 as substring.

It is a congruent number.

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, 93692 + ... + 94235.

Almost surely, 2^51116144 is an apocalyptic number.

It is an amenable number.

51116144 is an abundant number, since it is smaller than the sum of its proper divisors (53747680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51116144 is a wasteful number, since it uses less digits than its factorization.

51116144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187952 (or 187946 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 51116144 is about 7149.5555106594. Note that the first 4 decimals coincide. The cubic root of 51116144 is about 371.1242745227.

Adding to 51116144 its reverse (44161115), we get a palindrome (95277259).

The spelling of 51116144 in words is "fifty-one million, one hundred sixteen thousand, one hundred forty-four".