55655571 has 8 divisors (see below), whose sum is σ = 76601344. Its totient is φ = 35906760.

The previous prime is 55655557. The next prime is 55655581. The reversal of 55655571 is 17555655.

55655571 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 not a de Polignac number, because 55655571 - 2⁷ = 55655443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55655521) 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, 299131 + ... + 299316.

It is an arithmetic number, because the mean of its divisors is an integer number (9575168).

Almost surely, 2^55655571 is an apocalyptic number.

55655571 is a deficient number, since it is larger than the sum of its proper divisors (20945773).

55655571 is a wasteful number, since it uses less digits than its factorization.

55655571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598481.

The product of its digits is 131250, while the sum is 39.

The square root of 55655571 is about 7460.2661480674. The cubic root of 55655571 is about 381.8002551210.

The spelling of 55655571 in words is "fifty-five million, six hundred fifty-five thousand, five hundred seventy-one".