51111344 has 10 divisors (see below), whose sum is σ = 99028260. Its totient is φ = 25555664.

The previous prime is 51111331. The next prime is 51111373. The reversal of 51111344 is 44311115.

It is a happy number.

51111344 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 2×51111344² = 5224738970972672, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1597214 + ... + 1597245.

It is an arithmetic number, because the mean of its divisors is an integer number (9902826).

Almost surely, 2^51111344 is an apocalyptic number.

It is an amenable number.

51111344 is a deficient number, since it is larger than the sum of its proper divisors (47916916).

51111344 is a wasteful number, since it uses less digits than its factorization.

51111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194467 (or 3194461 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 51111344 is about 7149.2198175745. The cubic root of 51111344 is about 371.1126574996.

Adding to 51111344 its reverse (44311115), we get a palindrome (95422459).

The spelling of 51111344 in words is "fifty-one million, one hundred eleven thousand, three hundred forty-four".