51272282 has 4 divisors (see below), whose sum is σ = 76908426. Its totient is φ = 25636140.

The previous prime is 51272251. The next prime is 51272293. The reversal of 51272282 is 28227215.

51272282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31460881 + 19811401 = 5609^2 + 4451^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12818069 + ... + 12818072.

Almost surely, 2^51272282 is an apocalyptic number.

51272282 is a deficient number, since it is larger than the sum of its proper divisors (25636144).

51272282 is a wasteful number, since it uses less digits than its factorization.

51272282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25636143.

The product of its digits is 4480, while the sum is 29.

The square root of 51272282 is about 7160.4666049078. The cubic root of 51272282 is about 371.5017658373.

Adding to 51272282 its reverse (28227215), we get a palindrome (79499497).

The spelling of 51272282 in words is "fifty-one million, two hundred seventy-two thousand, two hundred eighty-two".