11481285525 has 12 divisors (see below), whose sum is σ = 18982392192. Its totient is φ = 6123352240.

The previous prime is 11481285523. The next prime is 11481285527. The reversal of 11481285525 is 52558218411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11481285523) and next prime (11481285527).

It is not a de Polignac number, because 11481285525 - 2¹ = 11481285523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481285523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76541829 + ... + 76541978.

It is an arithmetic number, because the mean of its divisors is an integer number (1581866016).

Almost surely, 2^11481285525 is an apocalyptic number.

11481285525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11481285525 is a deficient number, since it is larger than the sum of its proper divisors (7501106667).

11481285525 is a wasteful number, since it uses less digits than its factorization.

11481285525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153083820 (or 153083815 counting only the distinct ones).

The product of its digits is 128000, while the sum is 42.

The spelling of 11481285525 in words is "eleven billion, four hundred eighty-one million, two hundred eighty-five thousand, five hundred twenty-five".