51289343 has 8 divisors (see below), whose sum is σ = 58662912. Its totient is φ = 43927416.

The previous prime is 51289339. The next prime is 51289387. The reversal of 51289343 is 34398215.

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 51289343 - 2² = 51289339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51289393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10946 + ... + 14912.

It is an arithmetic number, because the mean of its divisors is an integer number (7332864).

Almost surely, 2^51289343 is an apocalyptic number.

51289343 is a deficient number, since it is larger than the sum of its proper divisors (7373569).

51289343 is a wasteful number, since it uses less digits than its factorization.

51289343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821.

The product of its digits is 25920, while the sum is 35.

The square root of 51289343 is about 7161.6578387968. The cubic root of 51289343 is about 371.5429673630.

The spelling of 51289343 in words is "fifty-one million, two hundred eighty-nine thousand, three hundred forty-three".