51376139 has 8 divisors (see below), whose sum is σ = 53375520. Its totient is φ = 49392000.

The previous prime is 51376111. The next prime is 51376177. The reversal of 51376139 is 93167315.

51376139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51376139 - 2¹⁶ = 51310603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51376099 and 51376108.

It is not an unprimeable number, because it can be changed into a prime (51376109) 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 7 ways as a sum of consecutive naturals, for example, 3314 + ... + 10664.

It is an arithmetic number, because the mean of its divisors is an integer number (6671940).

Almost surely, 2^51376139 is an apocalyptic number.

51376139 is a deficient number, since it is larger than the sum of its proper divisors (1999381).

51376139 is a wasteful number, since it uses less digits than its factorization.

51376139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621.

The product of its digits is 17010, while the sum is 35.

The square root of 51376139 is about 7167.7150473495. The cubic root of 51376139 is about 371.7524343299.

It can be divided in two parts, 51376 and 139, that added together give a palindrome (51515).

The spelling of 51376139 in words is "fifty-one million, three hundred seventy-six thousand, one hundred thirty-nine".