51744672 has 72 divisors (see below), whose sum is σ = 168176736. Its totient is φ = 14783616.

The previous prime is 51744661. The next prime is 51744701. The reversal of 51744672 is 27644715.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×51744672² = 5355022160775168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10818 + ... + 14849.

It is an arithmetic number, because the mean of its divisors is an integer number (2335788).

Almost surely, 2^51744672 is an apocalyptic number.

It is an amenable number.

51744672 is an abundant number, since it is smaller than the sum of its proper divisors (116432064).

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

51744672 is a wasteful number, since it uses less digits than its factorization.

51744672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25690 (or 25679 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 51744672 is about 7193.3769538375. The cubic root of 51744672 is about 372.6392062627.

The spelling of 51744672 in words is "fifty-one million, seven hundred forty-four thousand, six hundred seventy-two".