11495225521 has 4 divisors (see below), whose sum is σ = 12379473652. Its totient is φ = 10610977392.

The previous prime is 11495225513. The next prime is 11495225531. The reversal of 11495225521 is 12552259411.

11495225521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 582498225 + 10912727296 = 24135^2 + 104464^2 .

It is a cyclic number.

It is not a de Polignac number, because 11495225521 - 2³ = 11495225513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11495225501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442124046 + ... + 442124071.

It is an arithmetic number, because the mean of its divisors is an integer number (3094868413).

Almost surely, 2^11495225521 is an apocalyptic number.

It is an amenable number.

11495225521 is a deficient number, since it is larger than the sum of its proper divisors (884248131).

11495225521 is an equidigital number, since it uses as much as digits as its factorization.

11495225521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884248130.

The product of its digits is 36000, while the sum is 37.

It can be divided in two parts, 11495 and 225521, that added together give a triangular number (237016 = T₆₈₈).

The spelling of 11495225521 in words is "eleven billion, four hundred ninety-five million, two hundred twenty-five thousand, five hundred twenty-one".