11543552533 has 2 divisors, whose sum is σ = 11543552534. Its totient is φ = 11543552532.

The previous prime is 11543552521. The next prime is 11543552539. The reversal of 11543552533 is 33525534511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8150839524 + 3392713009 = 90282^2 + 58247^2 .

It is a cyclic number.

It is not a de Polignac number, because 11543552533 - 2³³ = 2953617941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11543552492 and 11543552501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11543552539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771776266 + 5771776267.

It is an arithmetic number, because the mean of its divisors is an integer number (5771776267).

Almost surely, 2^11543552533 is an apocalyptic number.

It is an amenable number.

11543552533 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543552533 is an equidigital number, since it uses as much as digits as its factorization.

11543552533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 135000, while the sum is 37.

The spelling of 11543552533 in words is "eleven billion, five hundred forty-three million, five hundred fifty-two thousand, five hundred thirty-three".