53213045205503 has 2 divisors, whose sum is σ = 53213045205504. Its totient is φ = 53213045205502.

The previous prime is 53213045205479. The next prime is 53213045205539. The reversal of 53213045205503 is 30550254031235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53213045205503 - 2¹⁰ = 53213045204479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53213045207503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606522602751 + 26606522602752.

It is an arithmetic number, because the mean of its divisors is an integer number (26606522602752).

Almost surely, 2^{53213045205503} is an apocalyptic number.

53213045205503 is a deficient number, since it is larger than the sum of its proper divisors (1).

53213045205503 is an equidigital number, since it uses as much as digits as its factorization.

53213045205503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 53213045205503 its reverse (30550254031235), we get a palindrome (83763299236738).

The spelling of 53213045205503 in words is "fifty-three trillion, two hundred thirteen billion, forty-five million, two hundred five thousand, five hundred three".