11142564553 has 4 divisors (see below), whose sum is σ = 11149525908. Its totient is φ = 11135603200.

The previous prime is 11142564509. The next prime is 11142564557. The reversal of 11142564553 is 35546524111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35546524111 = 7 ⋅5078074873.

It can be written as a sum of positive squares in 2 ways, for example, as 10463857849 + 678706704 = 102293^2 + 26052^2 .

It is a cyclic number.

It is not a de Polignac number, because 11142564553 - 2¹⁷ = 11142433481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11142564557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3478276 + ... + 3481477.

It is an arithmetic number, because the mean of its divisors is an integer number (2787381477).

Almost surely, 2^11142564553 is an apocalyptic number.

It is an amenable number.

11142564553 is a deficient number, since it is larger than the sum of its proper divisors (6961355).

11142564553 is an equidigital number, since it uses as much as digits as its factorization.

11142564553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961354.

The product of its digits is 72000, while the sum is 37.

The spelling of 11142564553 in words is "eleven billion, one hundred forty-two million, five hundred sixty-four thousand, five hundred fifty-three".