55644654 has 32 divisors (see below), whose sum is σ = 126161280. Its totient is φ = 16219872.

The previous prime is 55644643. The next prime is 55644683. The reversal of 55644654 is 45644655.

55644654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17292 + ... + 20255.

It is an arithmetic number, because the mean of its divisors is an integer number (3942540).

Almost surely, 2^55644654 is an apocalyptic number.

55644654 is an abundant number, since it is smaller than the sum of its proper divisors (70516626).

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

55644654 is a wasteful number, since it uses less digits than its factorization.

55644654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37584.

The product of its digits is 288000, while the sum is 39.

The square root of 55644654 is about 7459.5344358747. The cubic root of 55644654 is about 381.7752897500.

Subtracting from 55644654 its reverse (45644655), we obtain a palindrome (9999999).

The spelling of 55644654 in words is "fifty-five million, six hundred forty-four thousand, six hundred fifty-four".