1152055520 has 144 divisors (see below), whose sum is σ = 3419436384. Its totient is φ = 359040000.

The previous prime is 1152055483. The next prime is 1152055529. The reversal of 1152055520 is 255502511.

It is a self number, because there is not a number n which added to its sum of digits gives 1152055520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152055529) 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, 131270 + ... + 139770.

It is an arithmetic number, because the mean of its divisors is an integer number (23746086).

Almost surely, 2^1152055520 is an apocalyptic number.

1152055520 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 1152055520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709718192).

1152055520 is an abundant number, since it is smaller than the sum of its proper divisors (2267380864).

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

1152055520 is a wasteful number, since it uses less digits than its factorization.

1152055520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8545 (or 8526 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 1152055520 is about 33941.9433739437. The cubic root of 1152055520 is about 1048.3133981031.

The spelling of 1152055520 in words is "one billion, one hundred fifty-two million, fifty-five thousand, five hundred twenty".