51510205543 has 2 divisors, whose sum is σ = 51510205544. Its totient is φ = 51510205542.

The previous prime is 51510205471. The next prime is 51510205577. The reversal of 51510205543 is 34550201515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51510205543 - 2²¹ = 51508108391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51510205843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25755102771 + 25755102772.

It is an arithmetic number, because the mean of its divisors is an integer number (25755102772).

Almost surely, 2^51510205543 is an apocalyptic number.

51510205543 is a deficient number, since it is larger than the sum of its proper divisors (1).

51510205543 is an equidigital number, since it uses as much as digits as its factorization.

51510205543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 51510205543 in words is "fifty-one billion, five hundred ten million, two hundred five thousand, five hundred forty-three".