55455055 has 4 divisors (see below), whose sum is σ = 66546072. Its totient is φ = 44364040.

The previous prime is 55455031. The next prime is 55455061. The reversal of 55455055 is 55055455.

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

It is not a de Polignac number, because 55455055 - 2⁹ = 55454543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55455055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545501 + ... + 5545510.

It is an arithmetic number, because the mean of its divisors is an integer number (16636518).

Almost surely, 2^55455055 is an apocalyptic number.

55455055 is a deficient number, since it is larger than the sum of its proper divisors (11091017).

55455055 is a wasteful number, since it uses less digits than its factorization.

55455055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091016.

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 55455055 is about 7446.8150910305. The cubic root of 55455055 is about 381.3411864658.

The spelling of 55455055 in words is "fifty-five million, four hundred fifty-five thousand, fifty-five".