53531323553 has 2 divisors, whose sum is σ = 53531323554. Its totient is φ = 53531323552.

The previous prime is 53531323537. The next prime is 53531323567. The reversal of 53531323553 is 35532313535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48168397729 + 5362925824 = 219473^2 + 73232^2 .

It is a cyclic number.

It is not a de Polignac number, because 53531323553 - 2⁴ = 53531323537 is a prime.

It is not a weakly prime, because it can be changed into another prime (53531323523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765661776 + 26765661777.

It is an arithmetic number, because the mean of its divisors is an integer number (26765661777).

Almost surely, 2^53531323553 is an apocalyptic number.

It is an amenable number.

53531323553 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531323553 is an equidigital number, since it uses as much as digits as its factorization.

53531323553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 303750, while the sum is 38.

The spelling of 53531323553 in words is "fifty-three billion, five hundred thirty-one million, three hundred twenty-three thousand, five hundred fifty-three".