11056558529 has 2 divisors, whose sum is σ = 11056558530. Its totient is φ = 11056558528.

The previous prime is 11056558501. The next prime is 11056558607. The reversal of 11056558529 is 92585565011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10123378225 + 933180304 = 100615^2 + 30548^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11056558529 is a prime.

It is not a weakly prime, because it can be changed into another prime (11056558729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528279264 + 5528279265.

It is an arithmetic number, because the mean of its divisors is an integer number (5528279265).

Almost surely, 2^11056558529 is an apocalyptic number.

It is an amenable number.

11056558529 is a deficient number, since it is larger than the sum of its proper divisors (1).

11056558529 is an equidigital number, since it uses as much as digits as its factorization.

11056558529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540000, while the sum is 47.

The spelling of 11056558529 in words is "eleven billion, fifty-six million, five hundred fifty-eight thousand, five hundred twenty-nine".