550331655 has 32 divisors (see below), whose sum is σ = 891855360. Its totient is φ = 289760640.

The previous prime is 550331653. The next prime is 550331669. The reversal of 550331655 is 556133055.

It is not a de Polignac number, because 550331655 - 2¹ = 550331653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550331651) 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 31 ways as a sum of consecutive naturals, for example, 449374 + ... + 450596.

It is an arithmetic number, because the mean of its divisors is an integer number (27870480).

Almost surely, 2^550331655 is an apocalyptic number.

550331655 is a deficient number, since it is larger than the sum of its proper divisors (341523705).

550331655 is a wasteful number, since it uses less digits than its factorization.

550331655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 33750, while the sum is 33.

The square root of 550331655 is about 23459.1486418412. The cubic root of 550331655 is about 819.4859235675.

The spelling of 550331655 in words is "five hundred fifty million, three hundred thirty-one thousand, six hundred fifty-five".