51367543 has 2 divisors, whose sum is σ = 51367544. Its totient is φ = 51367542.

The previous prime is 51367541. The next prime is 51367549. The reversal of 51367543 is 34576315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51367543 - 2¹ = 51367541 is a prime.

Together with 51367541, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 51367499 and 51367508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51367541) 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 as a sum of consecutive naturals, namely, 25683771 + 25683772.

It is an arithmetic number, because the mean of its divisors is an integer number (25683772).

Almost surely, 2^51367543 is an apocalyptic number.

51367543 is a deficient number, since it is larger than the sum of its proper divisors (1).

51367543 is an equidigital number, since it uses as much as digits as its factorization.

51367543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 34.

The square root of 51367543 is about 7167.1153890530. The cubic root of 51367543 is about 371.7316999174.

The spelling of 51367543 in words is "fifty-one million, three hundred sixty-seven thousand, five hundred forty-three".