55885648 has 80 divisors (see below), whose sum is σ = 134741376. Its totient is φ = 21864960.

The previous prime is 55885603. The next prime is 55885723. The reversal of 55885648 is 84658855.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190590 + ... + 190882.

Almost surely, 2^55885648 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 55885648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67370688).

55885648 is an abundant number, since it is smaller than the sum of its proper divisors (78855728).

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

55885648 is a wasteful number, since it uses less digits than its factorization.

55885648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 446 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 49.

The square root of 55885648 is about 7475.6704047196. The cubic root of 55885648 is about 382.3256453998.

It can be divided in two parts, 5588 and 5648, that added together give a square (11236 = 106²).

The spelling of 55885648 in words is "fifty-five million, eight hundred eighty-five thousand, six hundred forty-eight".