51330360 has 64 divisors (see below), whose sum is σ = 157762080. Its totient is φ = 13352960.

The previous prime is 51330317. The next prime is 51330379. The reversal of 51330360 is 6303315.

It is a congruent number.

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, 297 + ... + 10136.

Almost surely, 2^51330360 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 51330360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78881040).

51330360 is an abundant number, since it is smaller than the sum of its proper divisors (106431720).

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

51330360 is a wasteful number, since it uses less digits than its factorization.

51330360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10488 (or 10484 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 51330360 is about 7164.5209190845. The cubic root of 51330360 is about 371.6419841460.

Adding to 51330360 its reverse (6303315), we get a palindrome (57633675).

The spelling of 51330360 in words is "fifty-one million, three hundred thirty thousand, three hundred sixty".