11481825520 has 120 divisors (see below), whose sum is σ = 29968206912. Its totient is φ = 4086213120.

The previous prime is 11481825503. The next prime is 11481825521. The reversal of 11481825520 is 2552818411.

It is a self number, because there is not a number n which added to its sum of digits gives 11481825520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481825521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442342 + ... + 467578.

Almost surely, 2^11481825520 is an apocalyptic number.

11481825520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11481825520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14984103456).

11481825520 is an abundant number, since it is smaller than the sum of its proper divisors (18486381392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11481825520 is a wasteful number, since it uses less digits than its factorization.

11481825520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25319 (or 25302 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The spelling of 11481825520 in words is "eleven billion, four hundred eighty-one million, eight hundred twenty-five thousand, five hundred twenty".