11504505528 has 24 divisors (see below), whose sum is σ = 31158036000. Its totient is φ = 3834835152.

The previous prime is 11504505503. The next prime is 11504505533. The reversal of 11504505528 is 82550540511.

11504505528 is a `hidden beast` number, since 1 + 1 + 50 + 4 + 50 + 552 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11504505492 and 11504505501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79892328 + ... + 79892471.

It is an arithmetic number, because the mean of its divisors is an integer number (1298251500).

Almost surely, 2^11504505528 is an apocalyptic number.

11504505528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11504505528 is an abundant number, since it is smaller than the sum of its proper divisors (19653530472).

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

11504505528 is a wasteful number, since it uses less digits than its factorization.

11504505528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159784811 (or 159784804 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The spelling of 11504505528 in words is "eleven billion, five hundred four million, five hundred five thousand, five hundred twenty-eight".