51727872 has 160 divisors (see below), whose sum is σ = 167346432. Its totient is φ = 13860864.

The previous prime is 51727867. The next prime is 51727891. The reversal of 51727872 is 27872715.

It is a self number, because there is not a number n which added to its sum of digits gives 51727872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182643 + ... + 182925.

Almost surely, 2^51727872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51727872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83673216).

51727872 is an abundant number, since it is smaller than the sum of its proper divisors (115618560).

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

51727872 is a wasteful number, since it uses less digits than its factorization.

51727872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 312 counting only the distinct ones).

The product of its digits is 54880, while the sum is 39.

The square root of 51727872 is about 7192.2091182056. The cubic root of 51727872 is about 372.5988735027.

The spelling of 51727872 in words is "fifty-one million, seven hundred twenty-seven thousand, eight hundred seventy-two".