51072448 has 28 divisors (see below), whose sum is σ = 115826032. Its totient is φ = 21888000.

The previous prime is 51072391. The next prime is 51072449. The reversal of 51072448 is 84427015.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51072449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56553 + ... + 57448.

It is an arithmetic number, because the mean of its divisors is an integer number (4136644).

Almost surely, 2^51072448 is an apocalyptic number.

It is an amenable number.

51072448 is an abundant number, since it is smaller than the sum of its proper divisors (64753584).

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

51072448 is a wasteful number, since it uses less digits than its factorization.

51072448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114020 (or 114010 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 51072448 is about 7146.4990030084. The cubic root of 51072448 is about 371.0184940517.

The spelling of 51072448 in words is "fifty-one million, seventy-two thousand, four hundred forty-eight".