55461648 has 80 divisors (see below), whose sum is σ = 163132416. Its totient is φ = 16072320.

The previous prime is 55461619. The next prime is 55461673. The reversal of 55461648 is 84616455.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9861 + ... + 14427.

Almost surely, 2^55461648 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 55461648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81566208).

55461648 is an abundant number, since it is smaller than the sum of its proper divisors (107670768).

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

55461648 is a wasteful number, since it uses less digits than its factorization.

55461648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612 (or 4606 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 55461648 is about 7447.2577503401. The cubic root of 55461648 is about 381.3562983002.

The spelling of 55461648 in words is "fifty-five million, four hundred sixty-one thousand, six hundred forty-eight".