51272351 has 8 divisors (see below), whose sum is σ = 55272000. Its totient is φ = 47280672.

The previous prime is 51272329. The next prime is 51272369. The reversal of 51272351 is 15327215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51272351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51272351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51272311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24650 + ... + 26648.

It is an arithmetic number, because the mean of its divisors is an integer number (6909000).

Almost surely, 2^51272351 is an apocalyptic number.

51272351 is a deficient number, since it is larger than the sum of its proper divisors (3999649).

51272351 is a wasteful number, since it uses less digits than its factorization.

51272351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985.

The product of its digits is 2100, while the sum is 26.

The square root of 51272351 is about 7160.4714230280. The cubic root of 51272351 is about 371.5019324875.

Adding to 51272351 its reverse (15327215), we get a palindrome (66599566).

The spelling of 51272351 in words is "fifty-one million, two hundred seventy-two thousand, three hundred fifty-one".