51500016559 has 2 divisors, whose sum is σ = 51500016560. Its totient is φ = 51500016558.

The previous prime is 51500016527. The next prime is 51500016577. The reversal of 51500016559 is 95561000515.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51500016559 - 2⁵ = 51500016527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51500016259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25750008279 + 25750008280.

It is an arithmetic number, because the mean of its divisors is an integer number (25750008280).

Almost surely, 2^51500016559 is an apocalyptic number.

51500016559 is a deficient number, since it is larger than the sum of its proper divisors (1).

51500016559 is an equidigital number, since it uses as much as digits as its factorization.

51500016559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33750, while the sum is 37.

The spelling of 51500016559 in words is "fifty-one billion, five hundred million, sixteen thousand, five hundred fifty-nine".