51443260 has 96 divisors (see below), whose sum is σ = 128378880. Its totient is φ = 17107200.

The previous prime is 51443257. The next prime is 51443311. The reversal of 51443260 is 6234415.

51443260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129382 + ... + 129778.

It is an arithmetic number, because the mean of its divisors is an integer number (1337280).

Almost surely, 2^51443260 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 51443260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64189440).

51443260 is an abundant number, since it is smaller than the sum of its proper divisors (76935620).

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

51443260 is a wasteful number, since it uses less digits than its factorization.

51443260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 51443260 is about 7172.3956946058. The cubic root of 51443260 is about 371.9142574190.

Adding to 51443260 its reverse (6234415), we get a palindrome (57677675).

The spelling of 51443260 in words is "fifty-one million, four hundred forty-three thousand, two hundred sixty".