55656671 has 4 divisors (see below), whose sum is σ = 63607632. Its totient is φ = 47705712.

The previous prime is 55656631. The next prime is 55656673. The reversal of 55656671 is 17665655.

55656671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55656671 - 2¹⁰ = 55655647 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 (55656673) 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 3 ways as a sum of consecutive naturals, for example, 3975470 + ... + 3975483.

It is an arithmetic number, because the mean of its divisors is an integer number (15901908).

Almost surely, 2^55656671 is an apocalyptic number.

55656671 is a deficient number, since it is larger than the sum of its proper divisors (7950961).

55656671 is an equidigital number, since it uses as much as digits as its factorization.

55656671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950960.

The product of its digits is 189000, while the sum is 41.

The square root of 55656671 is about 7460.3398716144. The cubic root of 55656671 is about 381.8027704578.

The spelling of 55656671 in words is "fifty-five million, six hundred fifty-six thousand, six hundred seventy-one".