55503648 has 54 divisors (see below), whose sum is σ = 158198859. Its totient is φ = 18459072.

The previous prime is 55503647. The next prime is 55503659. The reversal of 55503648 is 84630555.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

55503648 is a `hidden beast` number, since 5 + 5 + 5 + 0 + 3 + 648 = 666.

55503648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 27751824 + 27751824 = 5268^2 + 5268^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5268.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55503647) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 126213 + ... + 126651.

Almost surely, 2^55503648 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 55503648

55503648 is an abundant number, since it is smaller than the sum of its proper divisors (102695211).

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

55503648 is an equidigital number, since it uses as much as digits as its factorization.

55503648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 55503648 is about 7450.0770465815. The cubic root of 55503648 is about 381.4525385172.

The spelling of 55503648 in words is "fifty-five million, five hundred three thousand, six hundred forty-eight".