555648 has 32 divisors (see below), whose sum is σ = 1476960. Its totient is φ = 185088.

The previous prime is 555637. The next prime is 555661. The reversal of 555648 is 846555.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

555648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (46155).

2⁵⁵⁵⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

555648 is an abundant number, since it is smaller than the sum of its proper divisors (921312).

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

555648 is a wasteful number, since it uses less digits than its factorization.

555648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464 (or 1452 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 555648 is about 745.4180035390. The cubic root of 555648 is about 82.2116286436.

The spelling of 555648 in words is "five hundred fifty-five thousand, six hundred forty-eight".