51736768 has 56 divisors (see below), whose sum is σ = 107533440. Its totient is φ = 24668160.

The previous prime is 51736759. The next prime is 51736771. The reversal of 51736768 is 86763715.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176430 + ... + 176722.

It is an arithmetic number, because the mean of its divisors is an integer number (1920240).

Almost surely, 2^51736768 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 51736768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53766720).

51736768 is an abundant number, since it is smaller than the sum of its proper divisors (55796672).

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

51736768 is a wasteful number, since it uses less digits than its factorization.

51736768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 415 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 51736768 is about 7192.8275385970. The cubic root of 51736768 is about 372.6202317470.

The spelling of 51736768 in words is "fifty-one million, seven hundred thirty-six thousand, seven hundred sixty-eight".