53503856873767 has 2 divisors, whose sum is σ = 53503856873768. Its totient is φ = 53503856873766.

The previous prime is 53503856873759. The next prime is 53503856873843. The reversal of 53503856873767 is 76737865830535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53503856873767 - 2³ = 53503856873759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53503856873767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53503856871767) 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 as a sum of consecutive naturals, namely, 26751928436883 + 26751928436884.

It is an arithmetic number, because the mean of its divisors is an integer number (26751928436884).

Almost surely, 2^{53503856873767} is an apocalyptic number.

53503856873767 is a deficient number, since it is larger than the sum of its proper divisors (1).

53503856873767 is an equidigital number, since it uses as much as digits as its factorization.

53503856873767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2667168000, while the sum is 73.

The spelling of 53503856873767 in words is "fifty-three trillion, five hundred three billion, eight hundred fifty-six million, eight hundred seventy-three thousand, seven hundred sixty-seven".