51144672 has 24 divisors (see below), whose sum is σ = 134255016. Its totient is φ = 17048192.

The previous prime is 51144659. The next prime is 51144707. The reversal of 51144672 is 27644115.

It is a tau number, because it is divible by the number of its divisors (24).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266283 + ... + 266474.

It is an arithmetic number, because the mean of its divisors is an integer number (5593959).

Almost surely, 2^51144672 is an apocalyptic number.

It is an amenable number.

51144672 is an abundant number, since it is smaller than the sum of its proper divisors (83110344).

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

51144672 is a wasteful number, since it uses less digits than its factorization.

51144672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532770 (or 532762 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 51144672 is about 7151.5503214338. The cubic root of 51144672 is about 371.1933033621.

Adding to 51144672 its reverse (27644115), we get a palindrome (78788787).

The spelling of 51144672 in words is "fifty-one million, one hundred forty-four thousand, six hundred seventy-two".