55479216 has 80 divisors (see below), whose sum is σ = 156767744. Its totient is φ = 16803072.

The previous prime is 55479173. The next prime is 55479227. The reversal of 55479216 is 61297455.

55479216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 41145 + ... + 42471.

Almost surely, 2^55479216 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 55479216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78383872).

55479216 is an abundant number, since it is smaller than the sum of its proper divisors (101288528).

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

55479216 is a wasteful number, since it uses less digits than its factorization.

55479216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1412 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 55479216 is about 7448.4371515104. The cubic root of 55479216 is about 381.3965601173.

The spelling of 55479216 in words is "fifty-five million, four hundred seventy-nine thousand, two hundred sixteen".