51546395503 has 2 divisors, whose sum is σ = 51546395504. Its totient is φ = 51546395502.

The previous prime is 51546395489. The next prime is 51546395533. The reversal of 51546395503 is 30559364515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51546395503 - 2⁵ = 51546395471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51546395533) 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, 25773197751 + 25773197752.

It is an arithmetic number, because the mean of its divisors is an integer number (25773197752).

Almost surely, 2^51546395503 is an apocalyptic number.

51546395503 is a deficient number, since it is larger than the sum of its proper divisors (1).

51546395503 is an equidigital number, since it uses as much as digits as its factorization.

51546395503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215000, while the sum is 46.

The spelling of 51546395503 in words is "fifty-one billion, five hundred forty-six million, three hundred ninety-five thousand, five hundred three".