100505555053457 has 2 divisors, whose sum is σ = 100505555053458. Its totient is φ = 100505555053456.

The previous prime is 100505555053439. The next prime is 100505555053469. The reversal of 100505555053457 is 754350555505001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73931777492881 + 26573777560576 = 8598359^2 + 5154976^2 .

It is a cyclic number.

It is not a de Polignac number, because 100505555053457 - 2¹⁶ = 100505554987921 is a prime.

It is not a weakly prime, because it can be changed into another prime (100505555058457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50252777526728 + 50252777526729.

It is an arithmetic number, because the mean of its divisors is an integer number (50252777526729).

Almost surely, 2^{100505555053457} is an apocalyptic number.

It is an amenable number.

100505555053457 is a deficient number, since it is larger than the sum of its proper divisors (1).

100505555053457 is an equidigital number, since it uses as much as digits as its factorization.

100505555053457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6562500, while the sum is 50.

The spelling of 100505555053457 in words is "one hundred trillion, five hundred five billion, five hundred fifty-five million, fifty-three thousand, four hundred fifty-seven".