87553332 has 96 divisors (see below), whose sum is σ = 246153600. Its totient is φ = 26804736.

The previous prime is 87553303. The next prime is 87553343. The reversal of 87553332 is 23335578.

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

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78394 + ... + 79502.

It is an arithmetic number, because the mean of its divisors is an integer number (2564100).

Almost surely, 2^87553332 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 87553332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123076800).

87553332 is an abundant number, since it is smaller than the sum of its proper divisors (158600268).

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

87553332 is a wasteful number, since it uses less digits than its factorization.

87553332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1174 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 87553332 is about 9356.9937479941. The cubic root of 87553332 is about 444.0421800687.

The spelling of 87553332 in words is "eighty-seven million, five hundred fifty-three thousand, three hundred thirty-two".