51105448 has 16 divisors (see below), whose sum is σ = 99989280. Its totient is φ = 24441648.

The previous prime is 51105443. The next prime is 51105449. The reversal of 51105448 is 84450115.

51105448 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 2×51105448² = 5223533630561408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51105443) 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, 138690 + ... + 139057.

It is an arithmetic number, because the mean of its divisors is an integer number (6249330).

Almost surely, 2^51105448 is an apocalyptic number.

It is an amenable number.

51105448 is a deficient number, since it is larger than the sum of its proper divisors (48883832).

51105448 is a wasteful number, since it uses less digits than its factorization.

51105448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277776 (or 277772 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 51105448 is about 7148.8074529952. The cubic root of 51105448 is about 371.0983869274.

The spelling of 51105448 in words is "fifty-one million, one hundred five thousand, four hundred forty-eight".