55744664 has 16 divisors (see below), whose sum is σ = 104699400. Its totient is φ = 27824832.

The previous prime is 55744657. The next prime is 55744669. The reversal of 55744664 is 46644755.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55744669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677 + ... + 10580.

Almost surely, 2^55744664 is an apocalyptic number.

It is an amenable number.

55744664 is a deficient number, since it is larger than the sum of its proper divisors (48954736).

55744664 is a wasteful number, since it uses less digits than its factorization.

55744664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11882 (or 11878 counting only the distinct ones).

The product of its digits is 403200, while the sum is 41.

The square root of 55744664 is about 7466.2349279942. The cubic root of 55744664 is about 382.0038741235.

Subtracting from 55744664 its reverse (46644755), we obtain a palindrome (9099909).

The spelling of 55744664 in words is "fifty-five million, seven hundred forty-four thousand, six hundred sixty-four".