51206343 has 8 divisors (see below), whose sum is σ = 68310000. Its totient is φ = 34120128.

The previous prime is 51206341. The next prime is 51206357. The reversal of 51206343 is 34360215.

It is a happy number.

51206343 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 not a de Polignac number, because 51206343 - 2¹ = 51206341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51206341) 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, 6033 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (8538750).

Almost surely, 2^51206343 is an apocalyptic number.

51206343 is a deficient number, since it is larger than the sum of its proper divisors (17103657).

51206343 is a wasteful number, since it uses less digits than its factorization.

51206343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8721.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 51206343 is about 7155.8607448720. The cubic root of 51206343 is about 371.3424402214.

Adding to 51206343 its reverse (34360215), we get a palindrome (85566558).

The spelling of 51206343 in words is "fifty-one million, two hundred six thousand, three hundred forty-three".