11555351539 has 2 divisors, whose sum is σ = 11555351540. Its totient is φ = 11555351538.

The previous prime is 11555351497. The next prime is 11555351569. The reversal of 11555351539 is 93515355511.

11555351539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11555351539 - 2²¹ = 11553254387 is a prime.

It is a super-2 number, since 2×11555351539² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11555351495 and 11555351504.

It is not a weakly prime, because it can be changed into another prime (11555351569) 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, 5777675769 + 5777675770.

It is an arithmetic number, because the mean of its divisors is an integer number (5777675770).

Almost surely, 2^11555351539 is an apocalyptic number.

11555351539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555351539 is an equidigital number, since it uses as much as digits as its factorization.

11555351539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 253125, while the sum is 43.

The spelling of 11555351539 in words is "eleven billion, five hundred fifty-five million, three hundred fifty-one thousand, five hundred thirty-nine".