550603655 has 16 divisors (see below), whose sum is σ = 766387200. Its totient is φ = 371920032.

The previous prime is 550603649. The next prime is 550603663. The reversal of 550603655 is 556306055.

It is a cyclic number.

It is not a de Polignac number, because 550603655 - 2¹⁰ = 550602631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 115055 + ... + 119744.

It is an arithmetic number, because the mean of its divisors is an integer number (47899200).

Almost surely, 2^550603655 is an apocalyptic number.

550603655 is a deficient number, since it is larger than the sum of its proper divisors (215783545).

550603655 is a wasteful number, since it uses less digits than its factorization.

550603655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234878.

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 550603655 is about 23464.9452375240. The cubic root of 550603655 is about 819.6209109317.

The spelling of 550603655 in words is "five hundred fifty million, six hundred three thousand, six hundred fifty-five".