87555576 has 64 divisors (see below), whose sum is σ = 236196000. Its totient is φ = 26943488.

The previous prime is 87555569. The next prime is 87555581. The reversal of 87555576 is 67555578.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19600 + ... + 23648.

Almost surely, 2^87555576 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 87555576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118098000).

87555576 is an abundant number, since it is smaller than the sum of its proper divisors (148640424).

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

87555576 is a wasteful number, since it uses less digits than its factorization.

87555576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128 (or 4124 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 48.

The square root of 87555576 is about 9357.1136575335. The cubic root of 87555576 is about 444.0459736504.

The spelling of 87555576 in words is "eighty-seven million, five hundred fifty-five thousand, five hundred seventy-six".