51449127 has 8 divisors (see below), whose sum is σ = 69425664. Its totient is φ = 33886008.

The previous prime is 51449081. The next prime is 51449141. The reversal of 51449127 is 72194415.

It is a happy number.

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

It is not a de Polignac number, because 51449127 - 2²⁰ = 50400551 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51449197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103063 + ... + 103560.

It is an arithmetic number, because the mean of its divisors is an integer number (8678208).

Almost surely, 2^51449127 is an apocalyptic number.

51449127 is a deficient number, since it is larger than the sum of its proper divisors (17976537).

51449127 is a wasteful number, since it uses less digits than its factorization.

51449127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206709.

The product of its digits is 10080, while the sum is 33.

The square root of 51449127 is about 7172.8046815733. The cubic root of 51449127 is about 371.9283955718.

The spelling of 51449127 in words is "fifty-one million, four hundred forty-nine thousand, one hundred twenty-seven".