51443200 has 60 divisors (see below), whose sum is σ = 127486260. Its totient is φ = 20572160.

The previous prime is 51443153. The next prime is 51443213. The reversal of 51443200 is 234415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10791 + ... + 14809.

It is an arithmetic number, because the mean of its divisors is an integer number (2124771).

Almost surely, 2^51443200 is an apocalyptic number.

51443200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63743130).

51443200 is an abundant number, since it is smaller than the sum of its proper divisors (76043060).

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

51443200 is an equidigital number, since it uses as much as digits as its factorization.

51443200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047 (or 4026 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 51443200 is about 7172.3915119017. The cubic root of 51443200 is about 371.9141128270.

Adding to 51443200 its reverse (234415), we get a palindrome (51677615).

The spelling of 51443200 in words is "fifty-one million, four hundred forty-three thousand, two hundred".