55353856 has 40 divisors (see below), whose sum is σ = 112190364. Its totient is φ = 27279360.

The previous prime is 55353829. The next prime is 55353869. The reversal of 55353856 is 65835355.

It can be written as a sum of positive squares in 2 ways, for example, as 55353600 + 256 = 7440^2 + 16^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36636 + ... + 38116.

Almost surely, 2^55353856 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 55353856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56095182).

55353856 is an abundant number, since it is smaller than the sum of its proper divisors (56836508).

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

55353856 is an equidigital number, since it uses as much as digits as its factorization.

55353856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572 (or 1556 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 55353856 is about 7440.0172042812. The cubic root of 55353856 is about 381.1090775057.

The spelling of 55353856 in words is "fifty-five million, three hundred fifty-three thousand, eight hundred fifty-six".