51442752 has 56 divisors (see below), whose sum is σ = 140817600. Its totient is φ = 16554496.

The previous prime is 51442739. The next prime is 51442759. The reversal of 51442752 is 25724415.

It is not an unprimeable number, because it can be changed into a prime (51442759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949 + ... + 10187.

It is an arithmetic number, because the mean of its divisors is an integer number (2514600).

Almost surely, 2^51442752 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 51442752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70408800).

51442752 is an abundant number, since it is smaller than the sum of its proper divisors (89374848).

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

51442752 is a wasteful number, since it uses less digits than its factorization.

51442752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283 (or 9273 counting only the distinct ones).

The product of its digits is 11200, while the sum is 30.

The square root of 51442752 is about 7172.3602809675. The cubic root of 51442752 is about 371.9130332025.

The spelling of 51442752 in words is "fifty-one million, four hundred forty-two thousand, seven hundred fifty-two".