11550204553 has 8 divisors (see below), whose sum is σ = 11696394528. Its totient is φ = 11404182144.

The previous prime is 11550204541. The next prime is 11550204563. The reversal of 11550204553 is 35540205511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11550204553 - 2⁵ = 11550204521 is a prime.

It is a super-2 number, since 2×11550204553² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11550204563) 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 7 ways as a sum of consecutive naturals, for example, 99850 + ... + 181852.

It is an arithmetic number, because the mean of its divisors is an integer number (1462049316).

Almost surely, 2^11550204553 is an apocalyptic number.

It is an amenable number.

11550204553 is a deficient number, since it is larger than the sum of its proper divisors (146189975).

11550204553 is an equidigital number, since it uses as much as digits as its factorization.

11550204553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83783.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 11550204553 in words is "eleven billion, five hundred fifty million, two hundred four thousand, five hundred fifty-three".