53337537217 has 2 divisors, whose sum is σ = 53337537218. Its totient is φ = 53337537216.

The previous prime is 53337537137. The next prime is 53337537233. The reversal of 53337537217 is 71273573335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37642208256 + 15695328961 = 194016^2 + 125281^2 .

It is a cyclic number.

It is not a de Polignac number, because 53337537217 - 2¹¹ = 53337535169 is a prime.

It is not a weakly prime, because it can be changed into another prime (53337507217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26668768608 + 26668768609.

It is an arithmetic number, because the mean of its divisors is an integer number (26668768609).

Almost surely, 2^53337537217 is an apocalyptic number.

It is an amenable number.

53337537217 is a deficient number, since it is larger than the sum of its proper divisors (1).

53337537217 is an equidigital number, since it uses as much as digits as its factorization.

53337537217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1389150, while the sum is 46.

The spelling of 53337537217 in words is "fifty-three billion, three hundred thirty-seven million, five hundred thirty-seven thousand, two hundred seventeen".