11523532450 has 48 divisors (see below), whose sum is σ = 23681341440. Its totient is φ = 4149643520.

The previous prime is 11523532409. The next prime is 11523532459. The reversal of 11523532450 is 5423532511.

It is not an unprimeable number, because it can be changed into a prime (11523532459) 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, 275170 + ... + 314269.

It is an arithmetic number, because the mean of its divisors is an integer number (493361280).

Almost surely, 2^11523532450 is an apocalyptic number.

11523532450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11523532450 is an abundant number, since it is smaller than the sum of its proper divisors (12157808990).

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

11523532450 is a wasteful number, since it uses less digits than its factorization.

11523532450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589491 (or 589486 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 11523532450 in words is "eleven billion, five hundred twenty-three million, five hundred thirty-two thousand, four hundred fifty".