53663236100557 has 2 divisors, whose sum is σ = 53663236100558. Its totient is φ = 53663236100556.

The previous prime is 53663236100521. The next prime is 53663236100641. The reversal of 53663236100557 is 75500163236635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43898323587561 + 9764912512996 = 6625581^2 + 3124886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53663236100557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53663236100857) 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, 26831618050278 + 26831618050279.

It is an arithmetic number, because the mean of its divisors is an integer number (26831618050279).

Almost surely, 2^{53663236100557} is an apocalyptic number.

It is an amenable number.

53663236100557 is a deficient number, since it is larger than the sum of its proper divisors (1).

53663236100557 is an equidigital number, since it uses as much as digits as its factorization.

53663236100557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206000, while the sum is 52.

The spelling of 53663236100557 in words is "fifty-three trillion, six hundred sixty-three billion, two hundred thirty-six million, one hundred thousand, five hundred fifty-seven".