11056551017 has 4 divisors (see below), whose sum is σ = 11094286980. Its totient is φ = 11018815056.

The previous prime is 11056551013. The next prime is 11056551031. The reversal of 11056551017 is 71015565011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71015565011 = 83 ⋅855609217.

It can be written as a sum of positive squares in 2 ways, for example, as 10772156521 + 284394496 = 103789^2 + 16864^2 .

It is a cyclic number.

It is not a de Polignac number, because 11056551017 - 2² = 11056551013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11056551013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18867542 + ... + 18868127.

It is an arithmetic number, because the mean of its divisors is an integer number (2773571745).

Almost surely, 2^11056551017 is an apocalyptic number.

It is an amenable number.

11056551017 is a deficient number, since it is larger than the sum of its proper divisors (37735963).

11056551017 is an equidigital number, since it uses as much as digits as its factorization.

11056551017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37735962.

The product of its (nonzero) digits is 5250, while the sum is 32.

The spelling of 11056551017 in words is "eleven billion, fifty-six million, five hundred fifty-one thousand, seventeen".