1053544221533 has 2 divisors, whose sum is σ = 1053544221534. Its totient is φ = 1053544221532.

The previous prime is 1053544221529. The next prime is 1053544221617. The reversal of 1053544221533 is 3351224453501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 888340180324 + 165204041209 = 942518^2 + 406453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053544221533 - 2² = 1053544221529 is a prime.

It is a super-2 number, since 2×1053544221533² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1053544223533) 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, 526772110766 + 526772110767.

It is an arithmetic number, because the mean of its divisors is an integer number (526772110767).

Almost surely, 2^{1053544221533} is an apocalyptic number.

It is an amenable number.

1053544221533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053544221533 is an equidigital number, since it uses as much as digits as its factorization.

1053544221533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 1053544221533 in words is "one trillion, fifty-three billion, five hundred forty-four million, two hundred twenty-one thousand, five hundred thirty-three".