505534222521553 has 2 divisors, whose sum is σ = 505534222521554. Its totient is φ = 505534222521552.

The previous prime is 505534222521527. The next prime is 505534222521611. The reversal of 505534222521553 is 355125222435505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488475108769729 + 17059113751824 = 22101473^2 + 4130268^2 .

It is a cyclic number.

It is not a de Polignac number, because 505534222521553 - 2⁴¹ = 503335199266001 is a prime.

It is a super-3 number, since 3×505534222521553³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505534222521497 and 505534222521506.

It is not a weakly prime, because it can be changed into another prime (505534222521353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252767111260776 + 252767111260777.

It is an arithmetic number, because the mean of its divisors is an integer number (252767111260777).

Almost surely, 2^{505534222521553} is an apocalyptic number.

It is an amenable number.

505534222521553 is a deficient number, since it is larger than the sum of its proper divisors (1).

505534222521553 is an equidigital number, since it uses as much as digits as its factorization.

505534222521553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000000, while the sum is 49.

The spelling of 505534222521553 in words is "five hundred five trillion, five hundred thirty-four billion, two hundred twenty-two million, five hundred twenty-one thousand, five hundred fifty-three".