11385460553 has 4 divisors (see below), whose sum is σ = 11392187268. Its totient is φ = 11378733840.

The previous prime is 11385460543. The next prime is 11385460561. The reversal of 11385460553 is 35506458311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3696275209 + 7689185344 = 60797^2 + 87688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11385460553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11385460553.

It is not an unprimeable number, because it can be changed into a prime (11385460543) 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, 3360818 + ... + 3364203.

It is an arithmetic number, because the mean of its divisors is an integer number (2848046817).

Almost surely, 2^11385460553 is an apocalyptic number.

It is an amenable number.

11385460553 is a deficient number, since it is larger than the sum of its proper divisors (6726715).

11385460553 is an equidigital number, since it uses as much as digits as its factorization.

11385460553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726714.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 11385460553 in words is "eleven billion, three hundred eighty-five million, four hundred sixty thousand, five hundred fifty-three".