55527216 has 40 divisors (see below), whose sum is σ = 144774960. Its totient is φ = 18337536.

The previous prime is 55527193. The next prime is 55527229. The reversal of 55527216 is 61272555.

55527216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 75 + ... + 10538.

It is an arithmetic number, because the mean of its divisors is an integer number (3619374).

Almost surely, 2^55527216 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 55527216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72387480).

55527216 is an abundant number, since it is smaller than the sum of its proper divisors (89247744).

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

55527216 is a wasteful number, since it uses less digits than its factorization.

55527216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10733 (or 10727 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 55527216 is about 7451.6586073169. The cubic root of 55527216 is about 381.5065217633.

The spelling of 55527216 in words is "fifty-five million, five hundred twenty-seven thousand, two hundred sixteen".