11521425055 has 8 divisors (see below), whose sum is σ = 15800811552. Its totient is φ = 7900405728.

The previous prime is 11521425049. The next prime is 11521425077. The reversal of 11521425055 is 55052412511.

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 11521425055 - 2¹⁷ = 11521293983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164591752 + ... + 164591821.

It is an arithmetic number, because the mean of its divisors is an integer number (1975101444).

Almost surely, 2^11521425055 is an apocalyptic number.

11521425055 is a deficient number, since it is larger than the sum of its proper divisors (4279386497).

11521425055 is an equidigital number, since it uses as much as digits as its factorization.

11521425055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329183585.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 11521425055 its reverse (55052412511), we get a palindrome (66573837566).

The spelling of 11521425055 in words is "eleven billion, five hundred twenty-one million, four hundred twenty-five thousand, fifty-five".