55678648 has 8 divisors (see below), whose sum is σ = 104397480. Its totient is φ = 27839320.

The previous prime is 55678643. The next prime is 55678661. The reversal of 55678648 is 84687655.

55678648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55678648² = 6200223686215808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55678643) 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 as a sum of consecutive naturals, namely, 3479908 + ... + 3479923.

It is an arithmetic number, because the mean of its divisors is an integer number (13049685).

Almost surely, 2^55678648 is an apocalyptic number.

It is an amenable number.

55678648 is a deficient number, since it is larger than the sum of its proper divisors (48718832).

55678648 is a wasteful number, since it uses less digits than its factorization.

55678648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6959837 (or 6959833 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The square root of 55678648 is about 7461.8126484119. The cubic root of 55678648 is about 381.8530176558.

The spelling of 55678648 in words is "fifty-five million, six hundred seventy-eight thousand, six hundred forty-eight".