51330272 has 24 divisors (see below), whose sum is σ = 115493616. Its totient is φ = 21998592.

The previous prime is 51330263. The next prime is 51330277. The reversal of 51330272 is 27203315.

51330272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51330277) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 114353 + ... + 114800.

It is an arithmetic number, because the mean of its divisors is an integer number (4812234).

Almost surely, 2^51330272 is an apocalyptic number.

It is an amenable number.

51330272 is an abundant number, since it is smaller than the sum of its proper divisors (64163344).

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

51330272 is a wasteful number, since it uses less digits than its factorization.

51330272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229170 (or 229162 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 51330272 is about 7164.5147777083. The cubic root of 51330272 is about 371.6417717668.

Adding to 51330272 its reverse (27203315), we get a palindrome (78533587).

The spelling of 51330272 in words is "fifty-one million, three hundred thirty thousand, two hundred seventy-two".