51723792 has 80 divisors (see below), whose sum is σ = 157222080. Its totient is φ = 16224768.

The previous prime is 51723769. The next prime is 51723811. The reversal of 51723792 is 29732715.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3823 + ... + 10865.

It is an arithmetic number, because the mean of its divisors is an integer number (1965276).

Almost surely, 2^51723792 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 51723792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78611040).

51723792 is an abundant number, since it is smaller than the sum of its proper divisors (105498288).

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

51723792 is a wasteful number, since it uses less digits than its factorization.

51723792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077 (or 7065 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 51723792 is about 7191.9254723613. The cubic root of 51723792 is about 372.5890770860.

The spelling of 51723792 in words is "fifty-one million, seven hundred twenty-three thousand, seven hundred ninety-two".