53505205155373 has 2 divisors, whose sum is σ = 53505205155374. Its totient is φ = 53505205155372.

The previous prime is 53505205155343. The next prime is 53505205155383. The reversal of 53505205155373 is 37355150250535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51614640654889 + 1890564500484 = 7184333^2 + 1374978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53505205155373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53505205155343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26752602577686 + 26752602577687.

It is an arithmetic number, because the mean of its divisors is an integer number (26752602577687).

Almost surely, 2^{53505205155373} is an apocalyptic number.

It is an amenable number.

53505205155373 is a deficient number, since it is larger than the sum of its proper divisors (1).

53505205155373 is an equidigital number, since it uses as much as digits as its factorization.

53505205155373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5906250, while the sum is 49.

The spelling of 53505205155373 in words is "fifty-three trillion, five hundred five billion, two hundred five million, one hundred fifty-five thousand, three hundred seventy-three".