23521584552 has 64 divisors (see below), whose sum is σ = 60873500160. Its totient is φ = 7566028800.

The previous prime is 23521584539. The next prime is 23521584607. The reversal of 23521584552 is 25548512532.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217852 + ... + 307412.

It is an arithmetic number, because the mean of its divisors is an integer number (951148440).

Almost surely, 2^23521584552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23521584552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30436750080).

23521584552 is an abundant number, since it is smaller than the sum of its proper divisors (37351915608).

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

23521584552 is a wasteful number, since it uses less digits than its factorization.

23521584552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89954 (or 89950 counting only the distinct ones).

The product of its digits is 480000, while the sum is 42.

The spelling of 23521584552 in words is "twenty-three billion, five hundred twenty-one million, five hundred eighty-four thousand, five hundred fifty-two".