87521988552 has 32 divisors (see below), whose sum is σ = 218823784800. Its totient is φ = 29171487744.

The previous prime is 87521988511. The next prime is 87521988553. The reversal of 87521988552 is 25588912578.

It is not an unprimeable number, because it can be changed into a prime (87521988553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139599 + ... + 441057.

It is an arithmetic number, because the mean of its divisors is an integer number (6838243275).

Almost surely, 2^87521988552 is an apocalyptic number.

It is an amenable number.

87521988552 is an abundant number, since it is smaller than the sum of its proper divisors (131301796248).

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

87521988552 is a wasteful number, since it uses less digits than its factorization.

87521988552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313565 (or 313561 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 60.

The spelling of 87521988552 in words is "eighty-seven billion, five hundred twenty-one million, nine hundred eighty-eight thousand, five hundred fifty-two".