51312360 has 64 divisors (see below), whose sum is σ = 167935680. Its totient is φ = 12439040.

The previous prime is 51312353. The next prime is 51312403. The reversal of 51312360 is 6321315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18117 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (2623995).

Almost surely, 2^51312360 is an apocalyptic number.

It is an amenable number.

51312360 is an abundant number, since it is smaller than the sum of its proper divisors (116623320).

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

51312360 is a wasteful number, since it uses less digits than its factorization.

51312360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38898 (or 38894 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 51312360 is about 7163.2646188732. The cubic root of 51312360 is about 371.5985378775.

Adding to 51312360 its reverse (6321315), we get a palindrome (57633675).

The spelling of 51312360 in words is "fifty-one million, three hundred twelve thousand, three hundred sixty".