55305655 has 8 divisors (see below), whose sum is σ = 66409200. Its totient is φ = 44216256.

The previous prime is 55305647. The next prime is 55305661. The reversal of 55305655 is 55650355.

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 55305655 - 2³ = 55305647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55305655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9331 + ... + 14059.

It is an arithmetic number, because the mean of its divisors is an integer number (8301150).

Almost surely, 2^55305655 is an apocalyptic number.

55305655 is a deficient number, since it is larger than the sum of its proper divisors (11103545).

55305655 is a wasteful number, since it uses less digits than its factorization.

55305655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7073.

The product of its (nonzero) digits is 56250, while the sum is 34.

The square root of 55305655 is about 7436.7771917680. Note that the first 3 decimals coincide. The cubic root of 55305655 is about 380.9984247311.

The spelling of 55305655 in words is "fifty-five million, three hundred five thousand, six hundred fifty-five".