55585332 has 96 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 16581600.

The previous prime is 55585331. The next prime is 55585391. The reversal of 55585332 is 23358555.

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 (55585331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84019 + ... + 84677.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^55585332 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 55585332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79833600).

55585332 is an abundant number, since it is smaller than the sum of its proper divisors (104081868).

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

55585332 is a wasteful number, since it uses less digits than its factorization.

55585332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 746 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 55585332 is about 7455.5571220399. The cubic root of 55585332 is about 381.6395730488.

The spelling of 55585332 in words is "fifty-five million, five hundred eighty-five thousand, three hundred thirty-two".