51000343 has 2 divisors, whose sum is σ = 51000344. Its totient is φ = 51000342.

The previous prime is 51000233. The next prime is 51000349. The reversal of 51000343 is 34300015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51000343 - 2⁹ = 50999831 is a prime.

It is a super-2 number, since 2×51000343² = 5202069972235298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51000349) 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 as a sum of consecutive naturals, namely, 25500171 + 25500172.

It is an arithmetic number, because the mean of its divisors is an integer number (25500172).

Almost surely, 2^51000343 is an apocalyptic number.

51000343 is a deficient number, since it is larger than the sum of its proper divisors (1).

51000343 is an equidigital number, since it uses as much as digits as its factorization.

51000343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 51000343 is about 7141.4524433059. The cubic root of 51000343 is about 370.8438082917.

Adding to 51000343 its reverse (34300015), we get a palindrome (85300358).

The spelling of 51000343 in words is "fifty-one million, three hundred forty-three", and thus it is an aban number.