55651312 has 20 divisors (see below), whose sum is σ = 108874480. Its totient is φ = 27554688.

The previous prime is 55651307. The next prime is 55651333. The reversal of 55651312 is 21315655.

55651312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 15237 + ... + 18532.

It is an arithmetic number, because the mean of its divisors is an integer number (5443724).

Almost surely, 2^55651312 is an apocalyptic number.

It is an amenable number.

55651312 is a deficient number, since it is larger than the sum of its proper divisors (53223168).

55651312 is a wasteful number, since it uses less digits than its factorization.

55651312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33880 (or 33874 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 55651312 is about 7459.9806970260. The cubic root of 55651312 is about 381.7905158818.

Adding to 55651312 its reverse (21315655), we get a palindrome (76966967).

The spelling of 55651312 in words is "fifty-five million, six hundred fifty-one thousand, three hundred twelve".