87525216 has 36 divisors (see below), whose sum is σ = 248900652. Its totient is φ = 29174976.

The previous prime is 87525211. The next prime is 87525223. The reversal of 87525216 is 61252578.

It is a happy number.

87525216 is a `hidden beast` number, since 87 + 52 + 521 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87525211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151666 + ... + 152241.

It is an arithmetic number, because the mean of its divisors is an integer number (6913907).

Almost surely, 2^87525216 is an apocalyptic number.

It is an amenable number.

87525216 is an abundant number, since it is smaller than the sum of its proper divisors (161375436).

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

87525216 is a wasteful number, since it uses less digits than its factorization.

87525216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303923 (or 303912 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 87525216 is about 9355.4912217371. The cubic root of 87525216 is about 443.9946432273.

The spelling of 87525216 in words is "eighty-seven million, five hundred twenty-five thousand, two hundred sixteen".