55006648 has 32 divisors (see below), whose sum is σ = 106968960. Its totient is φ = 26490240.

The previous prime is 55006643. The next prime is 55006669. The reversal of 55006648 is 84660055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55006643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72286 + ... + 73042.

It is an arithmetic number, because the mean of its divisors is an integer number (3342780).

Almost surely, 2^55006648 is an apocalyptic number.

It is an amenable number.

55006648 is a deficient number, since it is larger than the sum of its proper divisors (51962312).

55006648 is a wasteful number, since it uses less digits than its factorization.

55006648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 55006648 is about 7416.6466816210. The cubic root of 55006648 is about 380.3105679000.

The spelling of 55006648 in words is "fifty-five million, six thousand, six hundred forty-eight".