51453360 has 320 divisors, whose sum is σ = 209986560. Its totient is φ = 11335680.

The previous prime is 51453343. The next prime is 51453361. The reversal of 51453360 is 6335415.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51453361) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 619879 + ... + 619961.

It is an arithmetic number, because the mean of its divisors is an integer number (656208).

Almost surely, 2^51453360 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 51453360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104993280).

51453360 is an abundant number, since it is smaller than the sum of its proper divisors (158533200).

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

51453360 is a wasteful number, since it uses less digits than its factorization.

51453360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 51453360 is about 7173.0997483654. The cubic root of 51453360 is about 371.9385954839.

Adding to 51453360 its reverse (6335415), we get a palindrome (57788775).

The spelling of 51453360 in words is "fifty-one million, four hundred fifty-three thousand, three hundred sixty".