53505205155403 has 2 divisors, whose sum is σ = 53505205155404. Its totient is φ = 53505205155402.

The previous prime is 53505205155383. The next prime is 53505205155461. The reversal of 53505205155403 is 30455150250535.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53505205155403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53505205155403.

It is not a weakly prime, because it can be changed into another prime (53505205155473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26752602577701 + 26752602577702.

It is an arithmetic number, because the mean of its divisors is an integer number (26752602577702).

Almost surely, 2^{53505205155403} is an apocalyptic number.

53505205155403 is a deficient number, since it is larger than the sum of its proper divisors (1).

53505205155403 is an equidigital number, since it uses as much as digits as its factorization.

53505205155403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125000, while the sum is 43.

The spelling of 53505205155403 in words is "fifty-three trillion, five hundred five billion, two hundred five million, one hundred fifty-five thousand, four hundred three".