54656221551647 has 8 divisors (see below), whose sum is σ = 54708732264240. Its totient is φ = 54603715420800.

The previous prime is 54656221551623. The next prime is 54656221551649. The reversal of 54656221551647 is 74615512265645.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54656221551647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54656221551649) 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, 22967879 + ... + 25235607.

It is an arithmetic number, because the mean of its divisors is an integer number (6838591533030).

Almost surely, 2^{54656221551647} is an apocalyptic number.

54656221551647 is a deficient number, since it is larger than the sum of its proper divisors (52510712593).

54656221551647 is a wasteful number, since it uses less digits than its factorization.

54656221551647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290873.

The product of its digits is 60480000, while the sum is 59.

The spelling of 54656221551647 in words is "fifty-four trillion, six hundred fifty-six billion, two hundred twenty-one million, five hundred fifty-one thousand, six hundred forty-seven".