51963607545 has 16 divisors (see below), whose sum is σ = 83257424640. Its totient is φ = 27675373184.

The previous prime is 51963607543. The next prime is 51963607561. The reversal of 51963607545 is 54570636915.

It is a cyclic number.

It is not a de Polignac number, because 51963607545 - 2¹ = 51963607543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51963607543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2398284 + ... + 2419853.

It is an arithmetic number, because the mean of its divisors is an integer number (5203589040).

Almost surely, 2^51963607545 is an apocalyptic number.

It is an amenable number.

51963607545 is a deficient number, since it is larger than the sum of its proper divisors (31293817095).

51963607545 is a wasteful number, since it uses less digits than its factorization.

51963607545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818864.

The product of its (nonzero) digits is 3402000, while the sum is 51.

The spelling of 51963607545 in words is "fifty-one billion, nine hundred sixty-three million, six hundred seven thousand, five hundred forty-five".