51561014783 has 16 divisors (see below), whose sum is σ = 54107917920. Its totient is φ = 49066343424.

The previous prime is 51561014731. The next prime is 51561014803. The reversal of 51561014783 is 38741016515.

51561014783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51561014783 - 2⁶ = 51561014719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51561014783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51561016783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3279860 + ... + 3295542.

It is an arithmetic number, because the mean of its divisors is an integer number (3381744870).

Almost surely, 2^51561014783 is an apocalyptic number.

51561014783 is a deficient number, since it is larger than the sum of its proper divisors (2546903137).

51561014783 is a wasteful number, since it uses less digits than its factorization.

51561014783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17338.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 51561014783 in words is "fifty-one billion, five hundred sixty-one million, fourteen thousand, seven hundred eighty-three".