51143360 has 56 divisors (see below), whose sum is σ = 122596656. Its totient is φ = 20321280.

The previous prime is 51143353. The next prime is 51143363. The reversal of 51143360 is 6334115.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51143363) 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, 57479 + ... + 58361.

It is an arithmetic number, because the mean of its divisors is an integer number (2189226).

Almost surely, 2^51143360 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 51143360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61298328).

51143360 is an abundant number, since it is smaller than the sum of its proper divisors (71453296).

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

51143360 is a wasteful number, since it uses less digits than its factorization.

51143360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 51143360 is about 7151.4585924831. The cubic root of 51143360 is about 371.1901292956.

Adding to 51143360 its reverse (6334115), we get a palindrome (57477475).

The spelling of 51143360 in words is "fifty-one million, one hundred forty-three thousand, three hundred sixty".