55001647 has 8 divisors (see below), whose sum is σ = 59811696. Its totient is φ = 50366592.

The previous prime is 55001627. The next prime is 55001659. The reversal of 55001647 is 74610055.

55001647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55001647 - 2⁷ = 55001519 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 (55001627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43093 + ... + 44350.

It is an arithmetic number, because the mean of its divisors is an integer number (7476462).

Almost surely, 2^55001647 is an apocalyptic number.

55001647 is a deficient number, since it is larger than the sum of its proper divisors (4810049).

55001647 is a wasteful number, since it uses less digits than its factorization.

55001647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87497.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 55001647 is about 7416.3095269817. The cubic root of 55001647 is about 380.2990420763.

The spelling of 55001647 in words is "fifty-five million, one thousand, six hundred forty-seven".